The twitching happened when he jumped off my hand onto the side of the tank that the light was shining on so, yeah, I don't think it was normal shedding. I know that the pad isn't going to be enough for me and I haven't had any problems maintaining humidity with my 60 watt ceramic heat-emitter. Quite the reverse, really. Being in the heated kitchen will help, but then there's the problem with checking for overheating. I can see you know all about that. When Bonk moves into his permanent tank maybe I'll have fewer issues because I have a much larger heat pad, but then again I don't think glass holds heat very well.