Understanding forces that influence flight of your aircraft is really not witchcraft.

Consider it as leverage as in:

IMHO......
Your C/G as the pivot point and your horzontal stabs +1 degree multiplied by the tail moment as a lever. The varible is the speed of the air moving over the h. stab. causing....slight changes in the attatude of the entire (pitch angle) aircraft.

As your aircraft speed increases the positive force on the stab will lift the tail and roll your 0 degree set wings to actually go to a negitive figure and dampen some of the lift generated by the high lift airfoil of the wings on this aircraft. As can be expected the reverse is also true when your airspeed drops so does the tail. Thus causing your wings to roll into a more positive angle and create more lift. You must realize that all this is not a great amount of movement and is well dampened and almost inperceptive in actual flight.

It is a very well and popular thought out force arrangement for this type aircraft.

Possibly the G62 is a bit more engine than the designer had in mind. But, considering the reliability of the G62 and you can fly the aircraft in a most scale like manner possibly at 1/2 throttle. (Hint= I use the larger fuel tank with my G62's! I.E. 24oz or larger.)

I would seriously consider setting your engine to the 2 deg. down and 2 deg. right, this to negate the tourqe reaction on take offs. The effect of this mainly would lessen the corrective rudder needed on the takeoff roll.

I hope this helps and "The Best Of Luck" with your new bird.

Let Me Know How it Goes, as I am considering building one also. I checked one out at the local
hobby shop and was quoted a very nice price.