RE: EF 540T questions
No matter which gear you go for (I went with the tetheright) order right away. Not many of the original gear last very long. I like the slow low end torque of the 4 stroke. Mine below has the YS 63S. I swing a 13 x 6 MAS scimitar. Great prop for this plane and a 4 stroke. The saito 72 is a good match for this plane as well. The saito guys at our field are also using the MAS 13 x 6 scimitar. If you go with a four stroke stay away from the low pitch props.