I had a bunch of links from before the time in question (june 2012), but most where dead by of that posting
Threads losts of forums upgrads and the like
Not many folks choose the compbrakes due to the rose-joints - would be harsh onroad
Do a little research on compbrake in general though - renown for poor quality, failures and zero warranty
I've had compbrake kit fail (calipers splitting open under braking) - you'll find others had other bits of kit fail
The attitude I recieved when contacting compbrake was appalling, sworn at down the phone
A common theme with compbrake failure is claim their kit is for track only (they said this to me too) - no mention of this on their
website listing for the arms, or any of their other kit
OP's money at the end of the day though - personally think the £100 extra for the forge tiebars, which have a lifetime warranty and good rep
They are what I used, and have withstood yrs of heavy punishment without issue