I second what MrStang said. My friend at the field has a new fave plane and it is the same 60 size Ultra Stick WITH THE Saito 100 on it. GREAT COMBO! The plane flies on a huge speed range and all those mixes on the wings and elev are too cool, and they make the plane land like a feather. Makes him look really good, lol! THe 60 size warbirds are another good choice for that engine...this same friend also pairs them up with great success. The 100 has plenty of power and a nice weight for warbirds that size approaching 70" wingspan. Personally I have a 100 waiting for a plane, and I think I just won a 60 size GP Shoestring for mine! Have fun and be safe. Jon