It sounds more to me like he isn't sure what he's supposed to be doing and just got lucky with the one he did open. It's possible the one he opened wasn't even MTL, cos even garrisons are pretty hard to rake/luck open.
Hodarakevin, there's a lot more to it than just pushing the pins down... especially with mul-t-lock. Which ones were they? Garrison, classic, interactive, MT5, or MT5+? Help us to help you. If you managed to luck open a garrison or some cheap imitation like the nabub with an easy bitting then tried to pick an interactive, that'd explain a lot.
In all honesty though you'd be better off starting out with something a hell of a lot easier and working on basic stuff until you know exactly what you're doing and have developed a decent feel for locks in general. Also, picking locks on doors isn't the best idea when you're just starting out. I've seen israeli doors, you need 2-4 full turns of the key to unlock as well so you'll be needing a reliable plug spinner unless you wanna sit there for an hour or more picking it multiple times. That's for future reference though, don't go messing with doors until you know exactly what you're doing cos if you mess something up it's gonna cost you a shitload of money.
![Shocked :shock:](./images/smilies/icon_eek.gif)