I have had mine for a year and a half also. G-23 for power.
You will have a hard time finding a nicer flying plane. I also
had trouble with the landing gear blocks, and had to open up
the bottom of the wing to beef it up. Also no big deal. It will
do loops, stall turns, inverted flight, rolls,(with rudder), spins,
inverted loops, I don't think of it as being under powered with
a G-23. But I did have to add weight to the tail, to get it to
balance. I have seen it fly with a Saito 120 4 cycle, this engine
also does a fine job.