true the cf on the blade is all metric, but as long as you've got 1/64" size increment english bits you can get it close enough where it won't matter after adhesive is used. besides, many lhs's stock cf in english sizes only, and obviously if you are using english cf tube, an english bit would be ideal. the reamer is a good idea, but unfortunately most reamers are designed to leave a tapered hole.

a word on adhesives: using loctite with plastic parts is generally not a good idea. the chemicals in loctite are known to break down plastics, resulting in a weakened bond and potential damage to the part (read the directions on a loctite bottle, it says it's for metal parts only). although the parts on the cp are a carbon composite, they likely still contain some plastic in the matrix, so loctite should generally not be used on our helis (motor screws or pinion gears are the exception).

still, i feel for ppl with plastiblades and broken booms, so i thought of something else that will probably work fine. use rtv silicone. the kind you can find at any automotive store that is used to make gaskets. i learned that's what airplane guys use to mount small brushless motors on CF tubing. if rtv will hold a brushless motor on as well as make removing it easy, i'm sure it'll do the trick with holding the boom on the frame.