I would say the Saito 72 and the YS 63 are about equal...

You will be amazed at the APC prop difference.....Also the APC doesn't flex as much and it will turn higher rpms so you can go to a little more prop.

I would say in the end on the same fuel the Saito 72 and the YS 63S are on equal footing.

Another option is what fuel was the Saito running compared to your 63S. The best stuff is the 30% Heli Performance Cool Power fuel.


Troy Newman
Team YS