Solved: Black Hole pop bumpers, help find documentation for fix

Cmndr Brain

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Finally getting around to fixing my Black Hole. One of the last things that's been plaguing me is the pop bumpers. I have done the mods for both reliability and LED
convenience. While playing, when 1 pop bumper is activated by the ball, another one fires as well. I know there was a fix for this, but can not seem to find it now.
Does anyone know where this fix is documented? I thought it was to add a capacitor somewhere, but could be mistaken.
 
Update. I've found it. A 2 line blurb in the pinwiki site. Just didn't see it the first 3 times reading through.

"Also, to avoid random, uncommanded pops caused by "noise" on the switch line, you can add an electrolytic capacitor to the solder side of the board. Use a 4.7 mfd 16 volt radial capacitor (both leads on one end). Solder the negative lead of the capacitor to pin 4. Solder the positive lead of the capacitor to pin 5."
 
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