I ripped up a pad or two on most cap jobs until I set aside the soldering iron and started cutting the caps off with dikes, haven't had any problems since. Enough heat to melt the solder also softens the adhesive holding the pads, so if you happen to put any force on the cap before the solder on both pads is *completely* molten, you have a high risk of lifting a pad. I would be nervous twisting them off, but it does make sense in a way. You are applying almost entirely lateral force to the pads, and no pulling/lifting force so it's certainly safer than any other sort of tugging method. I say if it works for you, go for it. Perfecting a technique and achieving consistency is far more important than the technique itself.