Not to "split hairs" with you but there was NEVER an acceleration issue, the Duc murders the car except on the big end (like after 1 1/2 miles and where does that ever happen?). To me, the fantastic thing is that, with a knee down, the Duc does a pretty tight road course FASTER than a top of the line Ferarri!
A turbo Busa would be a nightmare on a tight road course....compared to a naturally asperated track prepped Busa.
I've ridden and driven the Streets of Willow and it is NOT a Busa track! Now "big" Willow (right next door), that is a high speed Busa place.