A Trio of Arizona Deltas
LEFT: Tom's DV uses a Tower .75 which is reported to be very loud.
CENTER: Walter went with an OS .91 FX and installed retracts.
RIGHT: Gene thinks his DV flies great with a Saito .91

All agree that to avoid frustration the radio switch should be mounted on the TOP of the wing.
Thanks to Bill from Prescott, AZ for the great photo!