yeah, the point in using titebond is not to glue the wood to the fret. its a waterbased glue so will soak in and slightly swell the surrounding area before setting pretty hard. this helps the fret do what frets should - which is hold themselves in
but i also use CA sometimes, usually on the ends. if you are doing a normal fret job (wont work for semi hemi) then leave a slight overhang on a bit longer. put the neck on its side when done and put a small drop of CA on the corner created by the overhanging fret and the fretboard. it will wick down the end just fine, even with bound fretboards. and if you get it right there wont be anything on the face of the board to clean up, just a little on the sides when you clip and file the fret down. You can do the same after the overhang is cut off but it has a much greater chance of running where you dont want it
that old epoxy method does work well, but went massively out of fashion