Going to make another attempt at configuring my Cinestar 8 as an ‘X8’ coaxial. This configuration places two motors on each of 4 booms. There is ample evidence that this configuration is more stable than the “flat 8”. It also allows me to shoot video straight ahead without getting the front boom in my shots. I got her up in the air for the first time today, and she flew very nicely. I am flying 14” APC MR props on the top motors and 16” APC MR props on the bottom motors. My mixer config is set to 64 for all motors. I’m running standard MK stack and QC motors. I was flying at an AUW of 16.25 lbs, about 2.5 pounds heavier than I normally fly. It handled well. But my current consumption is about 50% higher than at my normal AUW with the flat config. Of more concern is my BL temps which spiked to 100°C on a previous flight with the NC disconnected (based on the Fraulein’s pronouncements). Ambient temperature was 50-55°F. Flying around dropped the temps, but hovering definitely spiked the temps to an uncomfortable level, even in this cool air. I wanted to test this weight because this is the likely weight of the copter with the brushless gimbal and 5D Mark III. So here’s my question... Obviously there are several variables at play (X8 vs. flat, AUW, and different props/mixer config). Does anybody know how I can accurately model this config in Ecalc to play with how I can optimize this configuration? Here’s the GPX file and a couple videos...thanks!