I install a decent amount of layered and single layer tips.
Approx. 100 a year.
And I also know alot of players who will immediately Grab a tip pick , tip tool , sandpaper , file...piece of concrete...after they miscue...or even miss a ball they think they should've made and start "fixing" their problem.
99.999 times out of 100. it was not the tip that hit it bad.
So...strictly in regards to layered tips.
Tip picks.
Well...think about what they do...penetrate and perforate.
Where.. and Because.. they don't remove material they will make a tip harder because they compress the material , as well as you lose the tips playing surface area that's replaced by chalk filled pot holes .....with the added risk of delaminating that miniscule top layer.....thus requiring it to be redressed down another layer.
And some of todays layered tip makers ...ahem....(tiger for 1)....barely give you enough room to dress it down more then 2x before you hit the red layer of done..
Now the more common people..
files and sanders....or as I call them...scrapers and scratchers.
Inevitably...they tear off the top layer then try to redress it on their own.....always turns out bad.
As well as now..atleast for a time being...the tip plays differently.
And will do so until those fibers you just scraped up get recompressed.
Also both home remedy methods risk compromising the lamentation bond to each other.
Another thing that I see players do alot is when they are done playing they rub their tip into the carpet.
Uh...carpet is for feet...its dirty...and you are essentially burnishing your tips playing surface.
Also other factors come into play when taking about tips....if the places you play have filthy balls all that dirt...fry grease..beer sweat...vomit....get on your tip as well....and affect the tips playing surface.
After I install any tip...
I always tell them what I recommend what not to do and will provide a maintenance service for them if needed for the life of the tip...I tell them play with it...if it looks like its mushrooming out or flattening...or not... just bring it to me and I'll take care of it.
As far as my tips on my playing cue....i put it on....break it in...light redress ...and i do not need to touch it for 6 to 12 months.
If I misscue....I chalk it up.