be very careful if you "stack" the two spades onto one binding post. Cardas spades are pretty hefty and you will probably have to rotate one with respect to the other to get a connection. If you do that, make VERY SURE that the spades from one leg (+ or -) do not touch the other leg and that they are very snug so that they cannot shift. It would be very easy to short the outputs, in which case, if you are lucky, you will need to replace fuses; if unlucky, lots more. If I were doing that I would use electrical tape or some other insulator between the two legs.
