Hahaha don't buy this, one hit and it bent a full 90 degrees. Absolute waste of money. I use a normal punch now and got a metal fabricators to punch a slight dent in the end.
It's a good idea, if it bent it's just poorly made. I bet you could use some A4 Stainless rod in M3 size and use a Dremel to make the end concave. Cost you a couple of bucks.
It's not very likely to happen if you take your time and use a small amount of force with a hammer, i'd never used one before and I didn't once hit the caliper. As with anything though patience is key
Good idea, I've seen the advice on this forum that the only way to get em out is give them a good wack, I can see why as I can't see 'a small amount of force' getting them out if they've been in there for a while. I copper greased up the new set of pins so hopefully they'll slip right out next time... I've got a steering judder under braking so will have to strip the brakes this weekend when I change the thermostat housing to measure the disc run-out.