In my experience Rx's tend to be very very reliable ...had over ten 67in electric 3d planes and loads of crashes and rebuilds learning to fly Xtreme Aerobatics due to various reasons ...dumb thumbs to ESC fires due to heavy oversize props. But only ever lost signal twice and that's due to an electric wire fence interference...forgot to turn it off. After checking signal quality while fence was switched on it was terrible. Also once when I was getting low signal quality on my Tx after changing out the Gimbals I had accidentally knocked one of the two internal antenna of inside...I didn't fly and suspected as much and just clipped it back ...was perfect signal after. So personally I wouldn't bother with 2 Rx's and spend my money on the best servos best ESC combination...this in IMO on electric 3d planes as been far best use of funds....and believe me I've spent 1000's ...but if it gives you piece of mind we'll that can only be a good thing.👍
