Thats good to hear rich, its not the fact that its helicoiled that bothers me its that mine have the top part of the hole bored out and only about 4-5mm of helicoil below that. It concerns me that if i didnt use a shouldered bolt that there might not be enough support when the brakes are used?

Are yours just helicoiled like mine with the bored out space at the top of the hole? have you used keenserts or timeserts?

Ive just noticed Probolt sell some Ti disc bolts for galespeed discs which are shouldered so im considering buying these and boring out the holes on the disc to suit, i have a spare set of PFM carriers so it doesnt bother me drilling them. Or do you think i worrying to much and normal bolts will be fine?