I've had both planes. First, a .60 is way too much motor for a 4*40. A OS 46 will be tons of power for that plane. Actually the Easy Sport is a shoulder wing and IMHO is a plane with a LOT more potential than a 4* and yet a great 2nd plane. The Easy Sport can be made into a tail dragger as I did and your .46 is a great motor for it.