I used standard servos in the rear myself, and CG was good with an OS 46 - no extra weight needed. I know light flies better, but the finance minister (Wife) said "NO MONEY"
Wish I had a MW44, this thing screams for a turbine (again, NO MONEY). I'd put my T-500 on it, but then I'm afraid I would be too heavy - plus, how to get 50 ounces of fuel in there...
Mark