Actually, I think it's like I said: water seeps into cracks and crevices and then expands when it freezes. It doesn't get driven in like a wedge into a log.
How does a wedge work? It applies pressure equally on both sides of it. How does ice apply pressure in a crack when water freezes? It applies pressure equally on both sides of it. You can also break or split most things by filling a cavity with something that doesn't compress and then applying more pressure forcing it out in all directions equally, filling a cavity with sand and striking too hard with a tamping tool for example, or filling a hole with angled sides in a cue tip with chalk particles and then hammering the tip into a cue ball.
1) What does "angled hole" mean?
Well PJ, That means "angled hole"
2) The holes made by a Tip Pik aren't deep at all. I doubt that they penetrate more than one layer of a layered tip with normal use.
That is plenty. Destroying one layer at a time still makes me a lot of money. Plus you are still damaging multiple layers at a time unless you play with a flat tip.
3) What other sharp pointed tools are there beside the Tip Pik?
I have seen several. I pretty much ignore gadgets so probably they have came and gone. My brad shaper has been getting the job done for almost forty years without going through tips every few months like some do.
I think you're being pretty liberal with your use of terms like "packed and wedged". I also think holes made by picks in tips mostly close up when the pick is removed. Have you measured any actual holes below the surface in actual tips?
Actually I'm not liberal about anything!
I have made holes in leather countless times, they didn't magically disappear when the tool was removed.
I've split logs lots of times, and I've used a Tip Pik every time I've played pool for the past decade or more - with no mushrooming or ill effects whatsoever. The two have nothing to do with each other.
Congratulations Paul, when did I compare tips to logs?
Sorry, but your analogy just doesn't apply and your concern about harming tips is unwarranted. Picking does nothing bad to tips.
Have you ever used a pick for any length of time?
No, I haven't. I have seen the damage and replaced the tips that people used picks on though. I love tip picks . . . . . . for other people to use!
pj
chgo