Quoted from PinNickleby:The holders are too tight when I reach underneath, can't even get one of them loose. I certainly don't want to break something so I may have to remove the playfield from the swivel hinge to get to them.
I had the same issue on my Dr. Dude. I ended up having to pull the playfield to change them.
Not ideal but they did this a lot on the System 11 games. Riverboat Gambler is the same way.
Chris