I always see people saying "I've heard stories of people blowing up chargers", but I've never ever met one of these people it apparently happens to all the time. I reckon it's no more than hearsay and rumours.
I ran toothies for years too, including when my car was a daily driver and on several track days. Never had any problems at all, never even had a belt snap.
It's a combination of buying a decent kit (i.e. not from ebay), using a belt with the correct tooth profile (i.e. not a timing belt), not over tightening (less than v-belts, much less, more like tensioning a timing belt) and replacing the belt every so often as a preventative measure rather than just keep running it till it snaps (again, like you would with a timing belt).
As for kits, mine was one of the very first sets that PSD sold so was the same as the "phase 1" set that Pete sold on here recently. If you see one of those kits then just buy it, they are the best.
