Worth noting that the ground for every single button and switch are shared. I just ran a thin tin-coated copper wire through all the grounds (soldered on) and then a single hookup to the card. [/quote]
Nice bit of engineering / creativity in getting so much more out of Leo's board!
The next time you're working under the hood on that, if you want to increase the reliability a bit, you could connect up the other end of the ground chain to the card as well. That way, a single break in the ground chain doesn't take out a bunch of your switches/controls. [and no, that's not what a ground loop is...
(You know it will happen at the worst possible time...)