I'm working on my wingtips now, Dan. They are the white gelcoat ones circa 2010 or so. I was looking the other day on the Vans website to see if there was a new part numbe, but W-715-1 still seems to be the part. I wouldnt say mine are "badly warped", but I would say that they are very thin and subject to low spots where not supported. I'll be setting nut plates this week and have them on. I'll determine then if I'm going to keep them. "Get'er flyin" keeps ringing in my brain.