Fried, your posts as to the benefits and limitations of the Sleepmaster software are excellent. Thanks for that. Steve, it's important for all of us to realize that sometimes the biggest car in the garage is not the one that serves a given driver the best. So it's a good thing that you have found Sleepmaster and that it is helping you to succeed in managing your apnea.
As to which is better, Sleepmaster, Sleepyhead, Resmed's Rescan? It really stacks up to which one better serves the individual user (I will not call us "patients"). I like Sleepyhead. Others like Rescan. Some like Sleepmaster. The only thing that is important is that the user finds whatever software, forums, DME's, angry relatives, or whatever it takes to be successful.
If one tool doesn't work for you, find another.
Good job Steve.