I try QMI just 2 week ago, I meet their SE at Car Show; he told
me their teflon coating can last for 1year++,with only $136. so I
try it.
Before Polishing, the shop ask for additional $40 to remove sand at
surface. I thought this should be included in the package 
after polishing, the shop manager ask me for package of 6 polish
for each 3 month! Then I know i get bulb shit
