No, not really - I suppose that is part of the industry's "big-lie". If it does cost more, then in quantity it would maybe add .10 per Rx (on only the ones that had the inverter). I was simply conjecturing that the circuit is already there, and it would actually cost the manufacturer more money to have 2 designs. In the case of GWS, since they are not 'selectable', the manufacturer - at the time they are built - either populates the board one way or the other. Its just a matter of knowing which side of the circuit to activate(post detection). Either there is an inverter there or there isn't, quite literally "a transitor" that would be jumpered in or not. There is no magic or rocket science to any of this. Why don't everyone make this available in their rx implementations? That answer is easy ... $$, each of us would just run out and buy another one when, for example, they no longer flew brand X and are now flying brand Y. So, my question dealt with whether anyone out there knew how to do this for this particular Rx (the same question would apply to any Rx that can be ordered +/- shift).