Hi Andy,
Many people do exactly what you have done, and it has not caused any problems with their radios.
The best option however is to purchase the bypass diode from the Service Center and either install it yourself or have it installed by an authorized Service Center. The part number is: HSP78368.
I hope you find this information helpful. You can also reach our Futaba support technical team at 217-398-8970, or via fax at 217-398-7721.
Sincerely,
Krysta
Lead Futaba Customer Service and Programming Technician
Also you may want to check our Website at (
http://www.futaba-rc.com)