People trying to install tips without a lathe are like people choosing to be their own lawyer. Very rarely does it end well.
I must be a rare one. I own a Willard tip setup with every imaginable collet and accessory. Been doing my own tips since I got fed up with sloppy work by both cue makers and repair guys.
I occasionally do tips for close friends as well. I let them decide how much to pay me or I do it for free. Hell I even resharpen the cutting blades to better than new. Use a 6000 grit wet stone no need to pull out the 10,000 grit one.
Never had one pop off or done any damage to a ferrule.
Just got to be careful, know what you’re doing and pay attention. I actually enjoy doing my own, get to try all sorts of tips doing your own.