spectrum:Removed the stickers from our 4 E7-80s. After 4 months and about 25 dives each they were tenacious! The hair dryer got then rolling off though. That glue was somehting else, it laughed at WD-40, laquer thinnner, now that's a solvent. It took about 6 passes to get it all into solution and mopped off. All in all did the whole project with my fingernails as the most aggressive tool.
I've found that acetone (main ingredient in fingernail polish remover) works best to dissolve sticker residue.