Interesting to see how a question about the "normal" positions of switches on the radio turned into a discussion on how to mount the switch on the aircraft. I find it great the amount of experience shown, but that is the fastest way to derail a topic.
To re-iterate, there is no "normal" position for the radio switches. you do what you think is logical and works for you. As already stated, consistency across models is the key. For example, ALL my models are programmed so my switches are all to the REAR for engine start-up and potentially take off if they are not equipped with flaps. I move the switches after the plane has left the ground or at least is taxing to the runway. Also prevents the surfaces / servos from moving when you turn on the radio equipment.
Rafael