The issue is...if you leave the drivers seat to use the BH, you can’t...cause the engine stops when you get up. The only way to actually run the BH (mine is a separate seat behind the drivers seat) is to defeat the safety switch...hmmm. not sure what you two are referring to regarding a BH safety switch??? Do you mean the engine dies if you try to move the machine with forward pedal while the seat is in BH position? I have not tried that with the B2650 as I just use the hoe to scoot me up the trench. I have used the forward pedal on the BX23 when I was in BH position, I could actually reach the pedal with my arm from the seat....then I got lazy and used a stick or short tree spade.
I can assure you that the above fix works fine when standing to try to see the tips of the forks.