If its a 6mt it really isnt a good starting point. I used it at first because I wanted to go through each step from stock, to jb4, to mhd+jb4, to full tune and there is no comparison if you get the right tuner. The throttle closures, the fuel trims, the lean AFRs, the inconsistencies all suck...
If you are running a manual just unlock it … trust me no one has more time in a 6mt on a jb4 testing and tuning than I do … you can get it to move pretty good on the jb4 but it will always be unpredictable
HAHHAA at least you still have a few more cold days to try ... I have a new turbo inlet on the way and a couple tricks to see if i can get it in the 5s before its hot out
I have tested the DA and it really only helps until around -1000 after that it starts to hurt traction and it isnt worth it ... have run similar times in both weather