Following up - I have attached a screen shot from lastnight's data. I'm interested in any feedback that people would like to share.
From my perspective - the good news is that I slept for nearly 5 hours strait before waking up. That's very rare for me....I'm lucky to go more than 2 hours before waking up at least once. On the other hand, I struggled to get much sleep after that initial wake up. Something odd was happening - I kept waking up in short invervals, and noticed elevated pressures (enough to wake me up). I keep my mouth taped....and I dont think air was leaking, but the discomfort of the pressure woke me up before I got back into a deep sleep. My room was particularly cold lastnight, and that may have been a factor.
FYI - Initially, last weekend, I adjusted my pressure up to 7, and left EPR at 3. However, I had a hard time falling asleep - I think the change in pressure was a little to abrupt (pressure of 7 while inhaling and ~4 while exhaling was hard to get used to). I guess I am too sensitive, and need to make adjustments more gradually. So the following day, I put it back to 5, but turned off EPR. That night went a bit better.
For lastnight - I bumped pressure up to 6.40, and left EPR turned off. For reasons I don't understand - the data in the Oscar screenshot shows that the EPR is at 2, but that's not correct. I double checked my machine before posting this, and it says EPR is off. And looking at the pressure chart, the pressure doesn't go below 6.4, which would imply that EPR is off.
I know there is some debate about using EPR - I'm not necessarily for it, or against it. For now, my focus is to work on increasing my minimum pressure. So far, I'm having better luck with keeping EPR turned off. I intend to gradually increase minimum pressure to 7 or 8 as members suggested in the posts above. And I'm open to experiment more with EPR.
For anyone that has read this far (Sorry I got a bit wordy) - should I still aim for a minimum pressure of 7? Oscar's statistics page indicates that my average pressure lastnight was 7.02, and screenshot shows median(?) pressure of 6.76.
Thanks!
Adam