That will probably work with most drivers...but as a former painter myself (not pro level mind you...but good enough to make a few bucks) I find the difference in my driving between when I have a hack paint job on and one that I slaved at for days to not be all that different...a little bit yes but not a significant amount.

What made the most difference in my driving early on was when a group of use used to get together in a parking lot somewhere and just drive. Eventually that led to the fast guys saying...hey let's try something, and taught us all something. Basically we started playing follow the leader. At first no one was allowed to pass but we were to follow the lead car closely without bumping the lead car or crashing. If we did either it was back to the end of the line and was the next guy's turn. The leader would also vary the pace often so we could get used to following and being patient at any speed. After we all started getting pretty good at that we were allowed to attempt a pass on the lead car. If we passed cleanly we became the lead car..if we bumped, back to the end of the line again. I wish we could get back to doing that again but finding the time these days is difficult...not to mention the cost in foam tires! But to this day I will often during practice sessions on race day pick a car to follow and just see how long I can follow him without causing an accident.