Yes, I've had a few Raptors too.
Now, the subject has shifted from the frame spacer / rod guides to the joint coupler that connects the front TR control rod to the back.
http://www.ronlund.com/rcheli-prod/T...ACEPV0168.html
The rod joint (item 8, part number BK105 on page 32 of your R60 manual) fails. I don't like it.
I changed to the R90 3D / SE servo mount, but I know the G4 uses the front mounted servo. And they use a different rod joint.
http://www.ronlund.com/rcheli-prod/T...ACEPV1588.html
I like this one.
Unfortunately, I can't find just the rod joint - it seems to come in the tail rotor control rod set only.