If Lee is using a heavier servo and engine mount, and his plane weighs the same, then you have extra weight at the rear of the plane, or gear mounted farther back, and you're haveing to balance it out.

Nothing really wrong with that approach, as you know, I was just asking since it looked off.

I would consider putting a teather on that engine though, that mount looks like it's asking to be ejected in a mid-air.