Rob, You may want to consider Citri-Strip stripper, pretty benign stuff that didn't hurt my gelcoat on the tug. I cleaned up the drips about 10-15 minutes after application and the gelcoat looks fine. The product is available here at Home Depot, and probably at other places as well. No affiliation with them, but a fairly decent product. I wouldn't try to mask off the gelcoat as you're bound to get some underneath the tape and that won't be good. Caviat: it works slowly, unlike the methyl chloride based products, so give it plenty of time to work. No nasty fumes to contend with, and it looks like a melted Dreamsicle !