The first sprint using the V8 and auto today with only one problem, in 3rd gear which is good for ~200 clicks it seems like there is some internal slippage at lower revs when winding it right out. It's almost like two stages so I'm thinking that line pressure will have to be increased at lower revs. Other than that it's a rocket which on a cold track with old tyres means slippy slidey fun, on the Morgan Park D circuit I found that leaving it in third all the way was best, particularly for corner exits.
So I'll have a chat to the guru but other than that it's all go finally, I really was getting to the end of the effort to keep trying. Compared with the VG30DET 425 horses at the wheels setup it's heaps different now, much more usable power and more of a challenge to drive requiring a different technique. Relieved to find out that I'm still able to do it all too, very relieved.