They are easy cut, just avoid the dust like the plague..:[X(] I used my Dremel with a cutoff wheel and dust mask. You can also just roll them under a razor blade until they are cut through.

I used the recommended JB weld and cleaned everything very well with alcohol before assembling to make sure the glue holds tight. Also, when you push the end in, you may trap a little air inside that will push the end back out if you do not do something to hold them in while the JB cures. I wrapped a loop of tape from end to end on mine while they cured.

On the this airplane (Ailerons and elevators), the CF pushrods look good, but they are so short, you almost end up with the titanium ends butted together inside the very short CF tube. In reality, the 4-40 rod would be just fine, albeit not nearly as cool looking.

For the initial length, I just measured from servo to control horn and then laid the components out on the table and extrapolated the CF tube length. Cut it, and then dry fit and recut as necessary to get it right.

Richard