I have to agree with srxripper, the Saito 100 is perfect for this bird as is. Greatly improved with the Cline regulator + the ability to mount the tank on the CG. Yet the ultimate combo is with the YS 110. At the cost of 6 extra oz. you can realize about 75% more power over the Saito. I have flown the UCD since they first hit the shelves and have had it set up with all three power options. The one improvement to the Saito was the Cline, the ultimate combo is, by far, the YS 110. Joe