Windstar
[12] Conqueror
hmm. i don't think you're getting the most out of practice mode. it's not only for memorizing input commands and juggles, but for improving your timing and your anti-character knowledge (including your own character).
so if you are losing to Kaz's u/f+4,4,4,4 every time, as you say, then the solution is to select him as your practice mode opponent, go into defensive training, and have the cpu do that move while you block. over and over until you don't even need to think about it. that move is very visible and has no mixup, so this shouldn't be a difficult or very lengthy exercise at all.
personally, i don't think attacking at the beginning of the round is a very good strategy. that aside, i think you might be a little late in your execution if 2,4 and d/f+1 are losing to other things. but there is a general problem with all the options you listed-- they all lose to a b,b~d/b. so from your description it's hard to tell why these moves aren't working for you. how often do you choose a defensive measure at the start of a round?
in general, from your post it sounds like you need to focus on the application of your move set (what move to use in which situation), your defence, and anti-character knowledge.
as far as characters to use, you have to use one that suits your style of play, or one that you just like in a more personal way. Jin is a solid overall character with a great 10f punisher in 2,4 , but i don't think he's exceptional in any one area. here's a link to understanding some of Jin's moves in T6:BR
http://www.tekkenzaibatsu.com/forums/showthread.php?threadid=114795
if aggression is your thing, you might find success with Nina or Anna. they're fast poke characters, as i'm sure you know. otherwise, Bryan is a good character too, and Lee as well. i'd say Lee and Anna are the simplest of these. it's hard to suggest a new character tho, since you haven't given any criteria other than "not Jin" ;-)
EDIT: here's a very thorough and awesome breakdown of Jin:
http://www.tekkenzaibatsu.com/forums/showthread.php?threadid=111806
Nina and Anna have never been of particular interest for me. I'm not into overly aggressive characters like them. I tend to prefer a better balance of characters. But then, I don't really look for a character that has a particular fighting style/tier/strategy. If I like the character, because of a certain aesthetic (their appearance, the way they move, etc) I play that character. It really doesn't matter whether the character is complex or not, I play the character I like.
But this seems to have gotten me in trouble. I liked Yunsung in Soul Calibur 2, for example. I liked Xianghua as far back as Soul Calibur. The first character I played in any Soul series was Siegfried in Soul Edge in the arcade. Yunsung sucks, X's fighting style has become increasingly different and/or more complex. And Siegfried is well... Siegfried.
So with the coming of Tekken 6. I petitioned the advice of several players asking what character to play - who was easier for beginners. Bruce or Asuka. Nine of the ten people I asked, said go with Bruce, he's easier. I picked up Bruce, found his combos incredibly complicated. Learned he had a CD - which I can't perform, and in general was a very difficult character (for me) to play. Asuka... well I was told she sucks, so I didn't do more than dabble a couple times with her. I didn't see any problems, but perhaps it was better to take the community's advice and avoid her.
So back to Jin I went. Like Tekken 5 before, my losses pile up and I fail to improve with the character I've been maining since Tekken 3. I peak into the Jin forums, read those two posts you've linked - well before you linked them. Still not seeing much improvement. So now I'm playing a new character, Leo. Still not having much success. With 158 games played on Leo and only 13 wins, perhaps I'm not particularly aligned with this character, either.
Missed this one lol. I think you need to worry less about reading stuff on forums if this is the case, and go back to just trying to relearn fighters from the ground up. A move like this, I mean there's no trick to it. It goes low after the second hit, you block low and punish.
Now if ONLINE is screwing you up, then that's one thing. But if you eat this offline, stop trying to analyze stuff. You just need to figure out how to get some kind of hand eye coordination going, there's nothing to figure out about a move like this. You just block it and hit him back. Forum posts have useful info sometimes, but they're not gonna push the buttons for you.
Offline, online. Skilled, unskilled. Masher or no, it doesn't matter. Why I eat u/f+4444 is because my opponent throws it out without pause nor provocation. In otherwords, I can't read what he'll do next so I end up it. Usually, it's the first hit I eat. Other times I eat the last hit. Nyawu said I could low parry after I block the first or second low. Next time I fight a Kazuya player who uses it, and I see it coming, I'll try this.
Also, I don't read up on forums and crazy or legit strategies. I know some players, do. I've spent barely an hour at TZ since Tekken 6 came out to consoles, and prior to that, zero. I haven't watched many videos of Tekken 6, and those that I have is usually just to get a gist on how characters move. I picked Bruce and Asuka, not out of some long list of possible eliminations, but because Muy-Thay has become a curious interest for me. And because I never really got the chance to try Asuka in Tekken 5.
You know my Leo's combo is nothing out of the game's list of sample combos, but my own (and probably others as well) combo. D/f+2, 3,1(2,1), d/b+2,2, d/b+4,1. Recently I've tried to replace d/b+4,1 with d/f+1+2, 1+2, QCF+2. But for all intents and purposes, I haven't tried overly complex combos with Leo yet, because I know I'm not there yet. Nyawu wants me to use u/f+4, f+2, b+1,4~df u/f+1 d/b+2,2, d/f+1+2, 1+2, QCF+2. It's a great combo, but I'm not ready to practice that, let alone use it in live play.
You suggest that I should go back and learn fighters from the ground up. All fine and dandy to me, should I read up on the information, or learn it in live play? Should stop predicting my opponent's next move and react accordingly? Do you even know why it is that I lose?
My PSN is up on my profile, it sits there right now while I post this. I put up new replays daily. If you really, really want to help me improve my game. You can go and download them, and message me and critique my game and help me improve. Nyawu is and has been. And you and everyone who reads (or doesn't read) this post is more than welcomed to look at them and help me improve. I've posted the same thing on the TZ forums.
If I could, I would grab every single fight I play and upload it to youtube. But I have no idea how. I don't have a capture card, though my PS3 is currently hooked up to the same monitor as my PS3. So for right now, replays is all I can offer. I don't expect anyone who has the 360 version of T6 to go out and buy the PS3 version (unless you're like... a rabid fan) just to help me or whatever.
If you got another character that would probably be a better fit for me than Leo, feel free to suggest. Just note that there are certain characters that I simply do not like to play. But there is a roster of 40 characters, so there's bound to be one that fits me... somewhere.