powershifting

Well i doubt powershifting will get you any at all, just learn to drive it w/o powershifting and you'll see more outta that than with powershifting. Your mods sound like you should already be in the 8's.

Proper powershifting will typically net you one or two tenths. It will also make fairly short work of a T-5. If you just shift at WOT (some people call that powershifting) then you'll get some benefit without as much risk. But I'd still plan on rebuilding or replacing the T-5. Especially if you strap on a 125 shot...

I would say it depends on how fast you can speed shift. Killercanary doesn't powershift but on the other hand, powershifting is consistently good for 2 tenths for me. I have been trying for a year now to match my powershifted E.T's by speedshifting but my speedshifting is just too slow. Some poeple can run the good times without the need to powershift. I can't. I would say to try powershifting and see if you make up that time. The T5 can take powershifting for a while, it's the missed shifts that hurt it the most. And when I say "Powershift" I do mean to use the clutch and shift without lifting.

Also, I powershifted for about 2 years before my T5 grenaded.