Count me in as a member of the snail trail club! Had my game for a few years now but still have got around to restoring it yet I got lucky finding this game as all the local pinheads were down in Seattle playing at Shorty's (I think) and I snagged it when it game up on CL.
I just searched Google for "Dingle Balls" and didn't like what I saw so I'm not quite sure what the artist was thinking there.