Interesting thoughts on the aluminum rod. I may try that. MondoMor also posted an idea about running a section of tubing from the muzzle into the Rip Clip body to help pick up the sound signature.
I am pretty sure that the RF will work, the Rip Clips are very close to the bodies. On the next gun system, they will be a little further away though.
Here is an older pic of the guns. They have changed a little but I have not taken recent pics.
The boards are relocated in the box between the ammo boxes.
Also when it's in the tank I have 14 or 16 inch CP barrels with Apex tips on them.