I just got done picking the Master Lock 575 a couple of times and I'm assuming that the silver pin on the side of the lock is meant to be drilled out to change the core. If that's the case, isn't that a breach in the security of the lock? If anyone knows, feel free to chime in, but I'll drill it out soon and post more pics.
Also, 5 pins, no spools, I beat it going pin to pin.
The pic is a little big, so here's an offsite address for it:
http://us.f13.yahoofs.com/bc/443e4593m3 ... IBttM1uxd3