Just received my ZIP TIP III tips from AVEO. So far have done nothing but look at them since I don't have the outboard bottom skins on yet. The skins of course extend out 1/2 inch with the holes for the tip attachment along that edge. The flange on the tips of the Van's and the Zips are both aprox. 1 5/16 in wide. That seems to be a lot material that needs to be removed to get it to fit. Am I missing something? Wondering why they mold them with that much excess flange? Also after reading numerous threads on the ZIP TIP III's possibly not fitting properly at the trailing edge, I'm afraid to do anything to them in case I need to send them back! Thanks.