On Sunday, March 20, 2016 at 4:41:42 AM UTC-7, Andy Blackburn wrote:

A second potential issue is how to counteract the torque of the gas motor and prop, which see to be substantially larger than the electric motors and props.

Re-read the Kickstarter description. Offset angle on the electrics should help. Presumably you'll get additional torque when accelerating to transition. You'll need to handle the variation presumably by accelerating the electric motors spinning the opposite direction from he main gas motor. I'm guessing you might need some limits on how much you can accelerate so you don't run out of countering torque.