Bump for Mr stack someones gotta know something about this !!???

Had the same problem but mine was intermediate. Sometimes Med Alert would work, other times it would say ball stuck or the game would go into ball search then release the ball, but by then the mode would be over. Did 2 things and never had a problem since.
1. I changed the smart swith out, put in a diffrent switch
2. If the ball has enough speed, it actually hops over the rollover to set off switch. Put a piece of thick padding in the back to slow the ball down just before it drops off the ramp.
I can take pictures in the morning, at work right now

image.jpgif this is the problem you have, this is what I did. I cut the smart switch out, and put in a older non smart switch. image-900.jpgI was told by someone that the smart switches are a pain and to swap it, just cut it out and solder an older one in. Forgot to mention I also changed the rubber, noticed the ball would fit by it without even coming into contact with the rollover. Someone might have used wrong size rubber. The other thing I noticed, if the ball has enough speed, when it drops off the ramp, it bounces around. I watched it bounce over the rollover onceimage-507.jpgPut thick padding back there, now no more bounce. Hope this helps.
And my play field does pull out, just takes a little more effort than my Sega game that slides out easy

image-230.jpg

Played this game for the first time at a bar in Waukesha, WI. It's a surprisingly fun game!