When I do the bolts up tight, the freehub locks up on part of it's rotation and grinds if you turn it by hand. I've had the wheel in without the chain on and tested it. When the bolts are nipped up, it doesn't grind, then when you tighten them properly it starts grinding. I found this video for the standard Pro2, does the trials version strip in the same way? http://www.hopegb.com/page_mep_force_37.html Once it's apart I'll be able to see whats up and sort it out, I tried following that video but I can't get the drive side cone off, I havn't given it much welly though. Should I?