i picked up a new shimano deore brake set (w/o rotors) off ebay for a steal of $85. I am going to run them with 6'' Avid rotors. Are there any disadvantages to this setup? And if it is a bad idea does anyone have any sugesstions on compatable 6-bolt discs. Also I would just like to ask why shimano would use center lock discs if their hubs are 6-bolt. If i used center lock discs I would have to buy $30/wheel adapters to mount SHIMANO rotors to my SHIMANO hubs. Also it seems to me like adapters would compromise the strength of the system.