In my opinion Tom is should not be a problem provided you use the thick Ca, if you use the thin then you might want to use a 9mm drill and see how it fits prior to gluing.
The main problem you will encounter using 23/64 and thin ca glue is a possible break out due to there not being enough glue between tube and blank. (Voids so to speak)
Hope this helps..
With the epoxy and painted tunes they need a little more room inside.