Fantastic to hear the smoke bomb issue is resolved. I admire your persistence. A lot of folks would have said "screw it" and put the car on Craigslist.
I had the pleasure of being on track in a 911 with a Boxster in hot pursuit. I would pull away fast on the straight, only to have him squeeze by me in the turns. We both thought we were pretty cool until an off-duty Skip Barber instructor absolutely SMOKED both of us in his spec Miata. We might as well have been driving golf carts.