OK... here it is again... you don't need 150 oz-in servos!!

Hanger 9 FuntanaS 90
Futaba 9 ZAP
S9102 servos on rudder and each aileron
S3004 on each elevator and throttle @ 5 cell (6 volt)
OS 160 with PERRY Pump and Tank @ CG (Almost LOL)
18 x 6W apc prop
10.00 pounds with CG @ 6.125"
F'n WOW!!!
Now this thing flies like a true 3D plane. Hovers at about 60% power. It does vertical rolls at about 2 per second!! It is NOSE HEAVY, but I will trade nose heavy for power in this instance. I have NOT exposed the plane to any sustained FULL POWER LEVEL FLIGHT conditions. I HAVE done extended FULL POWER VERTICAL Flight conditions. It is as fast vertically at full power with the 160 as it was horizontally with the SAITO!!! I am gonna figure out some way to move the battery pack to the back end to get a less bad CG. Rudder effectiveness reduced in a TR by fwd CG. I had to butcher the cowl a bit on the bottom to get the exhaust to fit, but not noticaeble in the air. Very solid in AOA's up to 50 degrees or so... This plane has been awoken with this power!!! I would not be satisfied with much less power... and I think most other 3D'ers feel the same. I was at 8.6 pounds with the saito 100... so it cost me a bit of weight... but at 10 pounds it still is extremely easy to land tail wheel first... with the 18 inch prop, you MUST land tail wheel first!! LOL In fact.. don't let the tail come up on take off either... I LOVE THIS PLANE!!!!!
I know I may get a bunch of warnings about the servos I use... really guys... its OK... I DON"T FLY FAST!!! And the Rudder and Elevators... see the little bit of control surface ahead of the hinge line??? That REDUCES req'd servo torque!!!
SPEED KILLS... NOT POWER!!!!! (And besides.. I bet it vibrates LESS with the OS 160 then the SAITO 100!!!!)