Gene,
First, thanks for your thread on this. I have a Fortress FX-16 that I got off CL cheap, less than half the cost and it was never used. Problem is same as you had, the CD anchor roller is way too short, the anchor tips hit my bow. So I've been shopping for a longer one and I've found several good options.
The only thing I can't find is an off-set roller. I checked the roller that came on my CD unit. I think maybe you got a different unit than I did... Mine feels like its solid all the way through, so it could be easily drilled out... but you don't need to. Even thought the bolt is 1/4", the hole through the roller is 3/8" and it uses an aluminum reducer (really bad idea). I'm going to call CD and see if I can order a spare, if I cannibalize the roller then the unit becomes useless.
As far as width, I have found several units that are 3 inches wide inside to inside, the CD unit is 2 & 7/8", so no problems with the roller fitting. I've also found units that have no holes drilled in them, which is key because I have to transfer the forestay bracket pattern with the slot for the tang and that doesn't line up with any bolt pattern out there.
Anyway, I let everyone know how it turns out.
