As Flintski22 says above, the set time on CA is very short and for this reason, it is difficult to get it spread out evenly and the tube inserted before it sets. I used CA on my first few pens in the (and I still have less than 75 pens turned). One of them was a beautiful spalted maple burl blank that was shaping up very nicely and it blew out. On close examination, I found that there was no CA under the piece that blew out. I found the blowout piece and glued it back in and recovered the blank. I have used BSI 5 minute epoxy on all my pens since.
I have a lot of difficulty with gluing things going back to plastic and wood models in the 50s and 60s. I always make a mess. So this is the way I do it and I am sure there are people on this forum that have better methods, but this works for me. YMMV.
I first cut and drill the blanks and plug the tubes with wax. I lay tape on my bench top to mix the epoxy on (easy to peel up and throw away, relatively cheap and it doesn't slide around). I wear nitrile gloves and just dive in. I always have denatured alcohol in a small squirt bottle and paper towels close by. DNA dissolves epoxy that has not set, washes it right off!! I got that bit of info on this forum after using epoxy forever and dealing with it sticking to everything with no relief. Mix the epoxy and use the popsicle stick to insert some epoxy inside the blank. Then roll about half the tube in the epoxy, insert tube in the blank with a twisting motion, push tube in so it's flush with the other end. Then use the popsicle stick to wipe off excess epoxy, push back the other way and do the same on the other end. I then center the tube in the blank and set aside on it's side so the tube does not move around in the blank. I put the blanks on scrap paper because there is always always epoxy on the outside cuz I'm messy and you don't want to glue the blank to the bench.
Again, I have not had a blank separate from the tube in the last 65 or 70 pens since I starte using epoxy. There may be people using CA without issues, I don't know.
I turn pens because I enjoy it. I have not tried to sell pens and still have almost half of the pens I turned. The others I gave away. If you are turning pens for income, you might want to dig deeper on this website. My time is valuable to me, but not in a monetary sense as it was when I was working, so I have a different perspective than people who are turning pens for profit.
Mike