I treated myself to a Noga after wanting one for a long time, thinking its the be all end all of mag bases. The arm is as advertised, but the mag base itself seems surprisingly weak... like can't hold its own weight to the column of my mill weak. I actually tinkered with it and a $10 Chinese base I already had(rated at ~50lbs vs the Noga's 175 rating) and they seem more or less equal in holding power. Has anyone else experienced this? I'm thinking I may have gotten a bad one, but maybe that's just how they are?