Just to add up, in Season 2, Jin was given a new zen transition
3,1 now transitions into zen and this is +4 on block + fucking 4 and he enters the animation so fast that he gets to cancel it faster than any zen transition
You can't jab him out because zen1+2 launches interrubtiple, zen 1 and zen 3 trades with jabs into a CH launch ,so you are forced to step 31~zen which its a mix because 314 its unstepable and non interruptible by jabs still and gets anyone launched for trying.
So his 314 and 31~zen are now a true mixup
When i told ppl this, they said "nah man, we can duck 31 on reaction"
Then i went to test the frame data on it and discovered that the followup after 3 its 17 frames, no one can duck that on reaction, they have to expect, to this day i haven't seen no one ducking 31 on reaction and Chikurin on the last tournament he faced book he did 3 into backdash and launched book for reacting to the twich animation of the 3 thinking he was going to followup
then again, its not the first time i say these gods of reactions are all frauds.
This may look like nothing but i definitely think 31~zen an 314 are among one of the best Jin's strings in the game, it gives a strong 50-50 that forces you to respect or duck either way trying to react to the 3 like that blasted salami says on that video its a big risk, it killed book for example and delaying a reaction to it gets you launched by 314 which its the fastest followup blowing up hard like a CH db4, and respecing puts you on the strongest 50-50 i've seen in the game, since he enters zen so fast, he gets to cancel it at the same rate, so if you try to duck zen 1, 2 hits, no one wants that, due the constant feat people duck but stand imediately with the fear of getting hit by zen 1, 2, and end up taking free hellsweeps all the time for blocking 3, 1...
sometimes at the wall its where the real shit triggers, you force them to block 3,1~zen and if they duck and you hit them with zen 1, 2 and it wallsplats, i think this string is by far Jin easy mode, specially against those who aren't used to its variations and helps a lot pulling a lot of wins.