My old boss at the shop in Fresno swore by 3M 05954 and I ignored him for 2 years
He kept telling me to stop using the cheap lacquer thinner for wipe downs because it was still flashing off too fast on hot days. I blew him off until last April when I had a black fender blush on me three times in one afternoon. Switched to the 3M stuff he recommended and never had the problem again. What product did you write off for way too long before finally caving?