I use the pearl p122tw. I don't play death metal/pure blast beats, but it's served me well for the stuff I play from jazz to...killswitch, job for a cowboy, tdwp etc... If you're talking about playing black dahlia typa stuff, you may wanna step up to an iron cobra, an powershifter eliminator or dw5000 or somethin
Least I would cause with the speed the springs have a chance of falling off on th elower models being they just basically balance between 2 ridges, and yea, if given a lil' slack they'll slip off. It's only happened to me once over the pas 6 months or so I'v ehad my pearl, but it can happen