Spent the weekend finally mounting a pair of Pelican Cases (blagged from work for nowt) to my SW Motech pannier frames, using the Touratech puck mounting system.

Seems to work OK and looks pretty neat, I just have a quick question for anyone that has used the Touratech puck mounting system before.

How tight should I mount the pucks to the pannier? As they work by effectively screwing a self tapping bolt straight into the plastic pucks I was a bit wary of over tightening them for fear of stripping the puck. Is it something I should worry about or should I just tighten away until the won't tighten anymore?