Hey Bobby. If its a plane over 30% I diffinatley use 2 batteries and switches. Personally I use 2 batteries, 2 switches, and 2 recievers. I will never fly my contest plane again without 2 recievers. I am the poster child for that. My antennae wire pulled out of the receiver in flight. If I had 2 of them I could had made at least a bad landing. Thats just my personal feelings on the approach to a big plane. 2 receivers!!!!....