It is an EV1. I think I'll have to go try a drive and see. It's pretty much always been this way so I'll have a hard time recognizing the difference. I may take a video.

Are the rectifiers serviceable or are the some sort of surface mount on the EV1 board?

EDIT: After a drive, I could not reproduce the symptoms but I have no load to haul. As this typically only happens with a load, I am not going to put too much stock into this not happening.

With the brake disengaged (with the floor pedal) and driving forward, I 'slam' the joystick into reverse and it slows quickly (is NOT abrupt) then changes direction. The same with driving reverse and putting the joystick into the far reverse. So I am thinking that rectifier is A-OK.