Newbie got machine last night, asking for some settings help

Welcome Gary, and good luck.
Uh... a word about playing with the buttons.....:
We're all firm belivers in that ...
With one caveat:
Our thougts are much better at accepting new information than our lungs - give yourself about a week at each pressure you try before you go on to make another change. Of course, if the new combination is horrid, don't stick to it.

Happy playing, happy data collection, and here's to achieving a good sleep - and pleasant creative living!

O.