Hey dmwelsh
I dont know and im not sure about aileron servos,but the rudder ,throggle and elevetor servos defently must to be a standart size.
more wheight needs and means more power
the only problem with this size of motor(.46) i think is the intense vibration.
Larger propeller gives more airwave back to ur tail and make the plane more stabilized
Good luck with urs [8D]
Regards GiannisX