I used to have one of those airplanes with a Saito 1.80. I still have the Saito 1.80 on another airplane but that's a whole different story. I used an APC 18-6W prop. The W stands for wide blade and gives extra thrust. You will most likely have to trim the spinner to fit this prop. Excellent power for hovering, etc. on 30% heli fuel. 15% fuel with this prop is still a good combination although you can expect to lose about 400 rpm. A 16-8 will give you more speed but less thrust for hovering manuevers. An APC is one of the most efficient props in this size and the difference between it and a Zinger is very noticeable. The difference between an 18-6W and a 16-8 is also very noticeable on the vertical stuff even though they tach out about the same. I also used the Y pushrods and although I didn't experience any flight problems with them, I didn't like them.