chinese and other players cues.......... I just change the ferrule because the tip will pop off shortly.............
gets expensive to absorb the cost of the change, and if you pass it on to the customer, they don't want to pay for a ferrule change and say a $$ kamui tip..... on a $125 cue.
I also don't change a ferrule without letting the customer know that I am, as quite a few of my regulars would know it in a heart beat. Instead, I have listened to some great guys, and listened, and then refined what I do for prep and have researched what glues work for what type of materials. I also DO NOT score or put crosscuts in the face of the ferrule, nor do I drill holes thru them either, that is IMHO, doing a hack job rather then learning the right ways to do it.
Everyone has their ways, and I stand tall by mine.