You won't go far wrong with one, Ive been in Kenny1's car which has one ( I think...lol) but his is strokered too, there was hardly any lag, but he knows how to really move the car, would probably just take a little practice.I understand what your saying but if you don't plan to launch the car then lag from a standing start is an issue. Admittedly on track lag isn't a concern as the revs are always within the limits of the turbo. As the majority of Evo owners predominantly use their cars on the road then I would say lag is an issue for most.
A reliable 500BHP sounds fantastic based on the Mods stated and thats is what I'm aiming for. This will hopefully be a good compromise for both road & track. :smthumbup