yeah you don't want a big turbo for Motorkhana, as a larger turbo means more lag. What you would probably want to do, is reduce the lag, and look at either shortening your FMIC piping (inverting the cooler etc) or switch back to the STI TMIC and go for a re-tune. Try bring the boost on quicker, earlier in the rev range.

Most of the skid pan days I run you hardly get into the middle of third gear, most work is done in second and low end of third though, depending on gear box ratio (4.11's vs 4.44's or 5spd vs 6spd) but it's all about getting the power out early!