Last summer I removed the lacquer from my GTS gas cap (it was badly corroded) and polished it. It looks great just after its polished but I've never seen anything corrode so fast in the rain, it almost grows a white beard in a few days. So I'm fed up with this and think I'll buy an MGW gas cap. Which style looks best, the emblem or the machined in logo. My GTS is black so should I get the black or silver emblem. Whats the quality like,is it better than the standard cap and does it look as "tough" as the original?