I'm not sold on electric brakes. I know what water does to the trailer lights, etc. Personally, I will stay with surge brakes until I am forced to electric. Surge are tried and true and when coupled with disc brakes over drum, they are about as maintenance free as you can get.
I don't disconnect anything when backing as backing would be impossible if I did. Surge disc brakes require a solenoid wired to the backup lights which closes and prevents hydraulic fluid from reaching the calibers and actualing the braking....so no connectee no backee!
_________________
Jvalich
http://www.badcock.com'04 FW 288 Vista "Mental Floss"