Quoted from Lrrr:
I recommend no foam whether it be a "tweak" or a "fix." (Again, thanks frobozz)
Wen I restored my TOTAN, I replaced all the switch foams throughout the game. for the switches behind each of the 2 captive balls, I cut the new foams back in half with an exacto knife for this exact reason. The new foam was too dense , and caused the switch to NOT register about 1/2 of the captive ball hits.
I didn't want to remove ALL the foam because I do believe that the constant pounding of the captive ball would bend the leafs in them. Since I did this, it registers about 98% of all the hits.
Just a suggestion.