I was careful with the CG position, in fact I used a heaver battery pack as far forward as possible to get the CG in range. I never considered the smaller surface area of the V tail as a possible issue but that's why I am on this forum. I was pulling lots of elevator when it snapped. When it nosed over and was spinning I don't think I released the elevator. That's not a natural thing to do when the model is heading straight down so I did panic some. I just didn't have enough altitude to recover.

I just wonder if it would have done the same thing if I had set it up with EP power and pulled the same maneuver.