Comments about Mapex B75 Retractable Boom Cymbal Arm:
Yeah, I've had two of these, and regret selling them. The ball-and-socket is sweet, coming from ratchet toothed tilters! It tightens up fast and is very solid. The OS rubber 'felts' are pretty nice. I can't tell a performance difference with them, other than they can hold the cymbal stiffer than regular felts. Length is a *hair* long on a 'regular' sized kit, so you have to play with it a little to find the sweet spot on your own kit. But it's not so long as to be awkward or less than functional.