I'm also interested in looking after my own regs as my new LDS just can't get it right. They've adjusted the 2nd stage so that at even the smallest suggestion from me, it tries to choke me by punching air down my throat. I've brought it back repeatedly but they just don't "get it", and reset it to choke me again. I've had to dive with my tongue out as a shield from that air. The next nearest LDS (that doesn't look like scuba is an afterthought) is 2 hrs away in Rhode Island or 2 hrs to New York. Any suggestions as to where I can look for training and materials?