Depends on the size of the tip you get and the snooker cue it self. My shaft end (lol) is 9.55mm and I use Elkmaster 9.55mm tips and 9/10 times they fit perfectly with a bit of sanding and shaping. I’m getting there slowly 😅
Just stick it back on if it falls off but if you use good glue it shouldn’t fall off but if it does just line it back up and put it on and make adjustments if needed 👍