I have used those but they go on an airtool and not sure I would use it on fiberglass because it generates a ton of heat.I've read many times that these things work great.
http://cgi.ebay.com/ebaymotors/ASTR...Z400010932964QQptZMotorsQ5fAutomotiveQ5fTools
Heat gun gets too hot. Hair dryer is slower but safe.
Use a razor blade to peel up an edge and then do the rest with your fingers....S-L-O-W-L-Y. Use rubbing alcohol and wash rag to remove the residue. Just removed old registration decals and numbers off mine and was fairly easy.
I have the airtool that is made for this pinstripe removing wheel. It is very low RPM. You have to very careful even at low RPMS. Trust me, I restored a horse trailer that I spent over 40 hours removing pinstripes on. You have to be extremely careful. I went through probably 10 of those wheels on this trailer and it does get hot. I would not use it on fiberglass.As far as heat, you keep the rubber wheel fairly slow, in a variable drill NOT an airtool. Once you see smoke coming off the rubber wheel its time to let it cool down some.
Just use a hairdryer or heat gun and then follow up with goo-gone. Also read up on renaming ceremonies so you don't **** off Poseidon