The 3M is the same stuff I have had on the back of my surfboard grip for years. Yes, with lots of use, it may start to peel up, but regular use shouldn't affect it for many years.
Now, the HARD part is getting the old glue off.
The wife and I used all the chemicals, including acetone, goo gone, gasoline, marvel oil, all kinds of items, and nothing really works.
The best bet that we found was get a heavy scraper with a razor on the end. buy about a gallon of goo gone. Literally a gallon. have a large garbage can nearby and LOTS of rags that will be thrown away.
Two things going on here, one is scraping the bulk of the goo off in small areas, maybe 6"x6" at a time. Pour goo gone into a butter dish or small bowl, and brush it on with a 2" paint brush. It will evaporate pretty quickly, so start scraping with your scraper to get the bulk of the crap off.
The next thing after getting the thick tacky stuff off is really just friction. You can dab the rags in goo gone if you want, and it will start to take some more of the goo off, but it really starts to work when it dries and the rag just sticks to the goo and rubs it off. Turn the rag alot and just keep rubbing until all the residue is off. It will roll of like if you have rubber cement on your fingers and you roll your fingers together, but will take MUCH more work.
It took us about 2-1/2 hours to get the swim platform clean, because it has that rough area made into the gelcoat. The hatch only took me an hour because the glue comes off the smooth areas much easier. Be careful with the razor scraper on the smooth areas as it will scratch the gel.
I didn't care if I knocked some of the gel off the bumps on my gel at the swim platform, but honestly, not much was damaged.