rtn9105, because I had to go to a wedding, I only got one flight on it so I'm not through trimming. But, I was surprised that it was not nose heavy. I initially placed my battery all the back in the radio compartment assuming it would have to be there with the 1.20, but I had to move it forward to hit the factury recommendation on CG. On a new airplane, I usually start with the factory recommendation for the first flight. I will creep it back until the plane dives very slightly with no elevator input in the inverted position. That's just personal preference.

I am not into electric power, so I can't help you on that, but the Saito 1.25 would be a lot of power for this plane. A good 90 would be plenty. I think the Saito is about 7oz. lighter than my old YS 1.20. You shouldn't have trouble hitting the CG.