If you're trying to keep it original, why are you putting leaf switch buttons in it? DK used microswitches for both the joystick and the buttons, on both the upright and cocktail versions (cocktails used a slightly smaller ball on the joystick and almost flush mounted buttons)
Guess you got confused by the pics I put up there of my MB CP.
I take the liberty to improve a game as I see fit. First of all, I hate microswitches. They suck. Second, I'm not doing the game any harm, it can always be reversed.Third: you don't SEE it do you ? You FEEL it though !

I've made the button and trackball lit in red on my Centipede. Original ? No. Looking awesome ? Yes !
Think I did it in the most tasteful possible way (unlit, they're both white).
Another example: my Meteor has unbelievably heavy-going microswitches. You can bet your last penny on it that I will replace them with leafs. If that makes the gameplay so much better for me, that's the way I go.
By the way, what's up with the side of that Centipede in that GAY video ? (That Mr. Rodgers approaches kids just like they _don't_ want to.....geez....)