I just snagged an M1 for a really good deal. I have a 1 year service contract on it, and want to make sure everything is in tip-top shape for my first outing with it. What I was wondering is...how do you tell by listening if the tape heads are out of alignment? Also, if the heads are dirty, will you hear some sort of tape hiss, or will it start making some sort of wonky noises? Thanks for your help on this subject.
-choob