Alright, so I want your opinions..
Held up pretty good the whole 2 months that I was wingless... Rained twice maybe... No water problems... You could always use a silicone sealant to seal it from the inside just to be sure if you want... As for cleaning the nasty spoiler poop... I've tried everything... Claybar... Wetsand... Etc. Nothing worked FOR ME... maybe yours is not as bad as mine.MRK, do those create a pretty good seal? No problems with water in the trunk?