You are right, the manual is for the smaller version. However the numbers still match up. Maybe it`s coincidence. Maybe they`ve miscalculated the CG on the smaller one too and it just happens to be about where the big FlyCat needs to balance.

It`s not exactly the same. The online instructions show 9.8" and I`m saying 9.6", but it is close.

I can assure you that the 9.6 mark will be flyable on the large Fly Cat. It may be a little nose heavy, but it`s always best to to error on the nose-heavy side.

If it doesn`t want to rotate, raise the nose as it sits on the ground. At 9.6" the cg is fairly far in front of the mains. Too far for easy rotation, so it may need the positive angle of attack to lift off.