[schoonerdog]

I'm amazed at this stuff. I'd would take a good solid 4 hours of cutting and prying to get a hatch out before using a flexible knife, and then quite a bit of time cleaning the hatch and rim. But with this a couple of applications and about 15 minutes and some light scoring and the hatch was out. Even if I went with the Fein I'm sure I would have had some gelcoat chips and it wouldn't have been half this easy. Great stuff! It used to take about two full days to do two hatches, removing, cleaning, prepping the cutout again (I put an epoxy filler into the hatch opening before I place the hatch in again to help prevent any water penetration), taping, etc. Now I think I could do four hatches in a good solid day of work and be half as tired. It even has a scarily pleasant smell (citrus?).

Anyway, thank you for the suggestion, it really worked very well.