about the efficiency of rapidly moving aluminium oxide in the removal of flesh- I'm here to second that! i used to be a Metal polisher here in Melbourne- a "jobbing" shop, doing all kinds. but that's irrelevant. the setup was these huge, pedestal mounted electric motors- essentially a bench grinder's big Daddy- with a spindle on either side to enable multiple wheels to be used. directly behind each Spindle was a backstand with an "idler" wheel, a tensioning and alignment necessity, because when Linishing, of course there'd be an appropriate contact wheel, and the belts we used (mainly SIA) were roughly 4.5 metres long if outstretched. hahaha, I'm getting to the point! this is just ONE of the mishaps.. standing behind and to the side of my contact wheel, and Linishing long, Stainless tubing for entry pulls- so you'd bung a P180 brand new on, and spin those suckers and vĂ²ila- 3 or 4 metres done in two minutes. ka-ching! anyways, we had to wear cruddy leather gloves for obvious reasons, but this one morning i was spinning myself a fat paycheck.. belt must've stretched a little too much and the whole thing slipped- whereapon my "bird-flipper" first two knuckles made decent contact with a virtually brand new 180 grit moving at around close to 3000rpm- there was instantly a 4.5 metre band of white SKIN on that reddish ochre belt, and my finger had a hole, down to the meat. just like that. funny thing is, it semi cauterised from the friction so it didn't bleed as much as you'd think! but that looonnng stripe of skin.. anyway, the belt still cut alright, so no dramas! also, a workmate was trying out a sample, a 40 grit hardback- this on the last day before we broke for Christmas- so he's put the belt on, started her up- only to have it snap instantly and deliver an almighty SLLLAP! across his face. brand-spanking new P40. red raw. hahaha poor old Ray had people out in public pretending to not look and whispering "oh, that poor bastard.." hahaha! funny. these are the tamer stories unfortunately. thanks Alan and crew!