DIY V-Tail setup

Im building a fairly large VTail (3d printing and Carbon Fiber tubes). Ive got to the point, briefly, of a test flight but one of my arms broke shortly after applying power (Ive got a vastly improved design in mind now). Before that happened it appeared way too much power was being delivered to the front pair of motors as it was lifting mostly on the front (and turning to the right/clockwise slightly).

I made my rears at a 40degree angle which I found online as being common… is this correct for the Nano’s Vtail config? Are they other settings I should be tweaking for a DIY (ie not Hunter Vtail) VTail build?

The VTail config should get you working but it will only make the right map configuration for motors.
You might need to tweak the PID to your frame size and equipment.