ORIGINAL: MikeEast

I dont like to make them any more tail heavy than is absolutely necessary. Lots of throw with strong servos will achieve about as much as an excessively aft CG. I agree with raideron. Trim the plane so that it flies hands off level upright and for inverted you put the plane in an inverted 45 degree climb and release the elevator at about 1/2 throttle the plane should VERY slowly fade downward. If the plane is flying hands off level inverted then you are pushing your luck with tailheavy. A tailheavy plane is a little easier to hover and it does some things a little easier but the plane will not "fly" as well and it will be way less stable, especially when you slow it down to land.

Again you want to acheive
1 hands off flat upright level flight at about 1/2 throttle
2 inverted in a 45 degree climb when you let off the elevator the plane just sightly fades downward with just a breath of down elevator to sustain level inverted flight.

Once you get there THEN increase the high rate elevator throw as much as is necessary to perform the most demanding 3D move in your arsenal. Usually a waterfall, wall and parachute would be the most demanding for big elevator response.