Master pro series 6121 how good is it?

[.Ben]

i just picked a master 6121 this morning and now i can pick it in about 2 minutes how good is this lock? does it sue securty pins? what should be my next step? ive only been picking for about a week now....

i started with a really cheap wafer lock on a toobox then picked a LSDA deadbolt, then a Weiser deadbolt, then a master no5, then the Big master pro series 6121 today....

so what should i try next?....

[vision688]

american lock 5200 series it will give you a challenge

[lock2006]

or american lock 1105 will give the same challenge
also you may try best lock 6 or 7 pins
hope this helps.