I'm one to let stuff run her till she blows on my bike but when it comes to wheels, I tend to go all bmw on them. When I swap rubber I always clean the crap out of them, oil the nipples, throw them in the truing stand and measure them with a dial caliper... adjust and torque up if necessary, apply a coat of wax followed by a thick coat of spray teflon mold release. I mean, even if I'm throwing on knobs that I know I'm going to burn through I just can't help but balance them too. Helps too that I have a dynamic balancer... I OCD it to the gram!