Saito 100 on mine and would not change it for the world. It is light, powerful, great throttle response, easy on fuels, quiet, and cost less than a YS. The only advantage I can see from the YS is fuel tank location. I've had a YS before and it was really picky. To it's credit, I didn't give it much of a chance before I yanked it off......

The real issue with this plane is GP's lousy packing. My first UCD was totaly perfect in every way....right up until my buddy, who was flying it, said "Watch this....."

It has now taken 2 kits from GP to get a good one......and it would need to improve a bit to be considered good......there is something rolling around in the wing of this one.....I can't feel any brokn ribs (unlike the first replacement kit that had 7 or 8 broken ribs...)

Of course when you talk to them GP, it is not thier fault......

Pug