RE: engine recommendations?
Out of your list, the 46pro is every bit as powerful and reliable as the OS 46fx/Ax. This is not from hearsay but from using them. Also you can add to your list the Supertiger 45 is very good. The 40 La is a definitely not! Also keep in mind that those numbers you posted are only numbers and can change with the prop type, your altitude and load level of the plane.