What lock should I try next?

[EvanGreene]

I've pretty much gotten the hang of the Master 140 lock. But, what now?

[GottFoo]

A brass brinks is usually a good step up. They can be found cheap at many wally worlds. Lots of spools and tight tolerances for such a cheap lock.

[lock2006]

Or the BRINKS SHROUDED also american padlocks
Schlage deadbolt,Kwikset, best lock just to mention a few
there are many locks,you just have to make your way up
i went tru all the master padlocks and american
but i did made my way up wasn't easy
sometimes you will get stuck with a specific lock or frustraded and give up
is all part of learning good luck.