I never had problems with my Fizik 3 mm bar tape (microtex bondcush) or white hoods until I rode on them once with brand new gloves (black leather palms) that I had never washed before. So ugly now. I need to get out a magic eraser and see how that works on them. It was a bike that I'd used exclusively on my trainer (gloves only to absorb sweat and slow bar corrosion), and it was shortly after that ride that I put my newly built up bike that fits me better on the trainer and I haven't ridden the bike with white tape since. I swear it has nothing to do with how sad looking at the tape makes me.