BC6 balancing board question
 

I have the thunderpower board and a 4s pack, but the pins in the board are for 4/5 s, meaning a pin is left over on the board. Does it matter which pin I don't use when plugging in to balance, eg does it matter whether I plug into the left 4 or right 4?

as long as you plug in so black on balance plug is on far left on first pin should be ok