Thanks for the update, Ken. I've never looked at the Quasar RX so my comment was directed toward someone that has never done that before and that has not seen the Quasar RX crystal ( a person like me, for instance.. ). I do know about the RD6000/RD8000 RX crystal, as most of the Airtronics RX's (blue ones) are pretty much interchangeable except for servo capacity.

DS.