I inherited a Fazer from my mentor with a Fox 50 on it. He cut the front back to the 4-stroke point and still had to put lead on the tail.
I switched to a os 46FX and removed the lead from the tail. it balanced perfectly but due to the fact I had to glue the fuse with two plates of lite-ply to put it back together.
After all I didn't inherit it in perfect working condition.
He He !! the fuse just behind the wing was broken in two.
It flys great and with a 12X3.375 prop it's nice and slow with great vertical. It goes upward about as good as it goes forward