Had my first run with the BJ more questions.

[Rossco]

on the controller card manual it says 5 seconds with the batteries unplugged till you can reset your settings. thats all.

[dana]

you need to balance and sharpen x642. i sold my elam recently with a x640. they guy who bought it put a x642 on there and said it actually ran faster on the 640 "shrug"