ORIGINAL: AirTech
ORIGINAL: nonstoprc
A choke servo probably is a better choice, in this case.
Whit an FM or PCM receiver a choke servo will be vulnerable to RFI and may shut off your engine when you least expect it. The same is true of an Optical Kill Switch which may experience a false signal due to RFI in the receiver. At least it will not pick up any noise through the switch cable (which acts like a virtual antenna).
Well, if you place the servo at least 6-8 inch from the motor, use nylon push-rod and assure no metal contact in the setup, a choke servo will no cause RFI. Have been using this setup on three gassers with PCM rx. No problem at all.