I have a Clear Bra installed a couple weeks back. Last weekend we had a butterfly storm! well The yellow butterfly guts set in the material. I tried everything and ended up using Ethyl ALCOHOL. I made the mistake of using a polishing compound and now I have a quarter size dull spot! I wonder if this is common? I notice the ads for the Clear Bras never mention bug guts removal ease? They only preach sand blasting/stone damage protection. Be warned!