Hi Dave:
Hang in there. My two 140RX's continue to perform flawlessly. They are spec'd to run at 125K, but I am a bit gentler with them and run them at 123K and do use the auto barometric/temp mode. They both are coming up on about (30) 9 minute flights. One pushes my Boomer Torus and the other a Cook T-33 with authority at 2-3 clicks above 1/2 throttle for routine cruise clean at about 165-170 MPH on the Futaba GPS.
Like you with the new 140 order, I am a bit nervous about my decision to buy a 180RX for one of my BVM F-100's. It currently has an old JC Rhino with lots of hours on it. Seems like after the testing at JOK and in FL, John has figured out a proper hardware and software fix for the 180. Will chat with John one more time before I jump in.
Regards.......Tom