SAITO 100 ISN'T ENOUGH! PLUS THE SAITO HAS FLAT SPOT THREW THE THROTTLE TRANSITION WITHOUT A PUMP! I HAD A CLINE ON MINE TO FIX THE PROBLEM! ANYWAYS I WAS RUNNING A 16*4W APC ON THE FA100 W/15% WILDCAT, IT TOOK ALIITLE TIME TO SPOOL UP!, BUT IF YOU A YS110 YOU CAN GO UP TO A 17INCH PROP WHICH I HEARD MAKES THE PLANE HANDLE MUCH BETTER! I GUESS IT HAS SOMTHING TO DO WITH THE PROPWASH, PLUS THE YS HAS A BUILT IN PUMP SO YOU CAN LOCATE THE FUEL TANK NEAR THE CG

HOPE THIS HELPS!