Perhaps this is also true for the replay version brother title King of Diamonds. Also, I would also presume that the Italian add-a-ball cousin Solitaire applies as well, but I'm not sure how that exactly works (for one, it doesn't seem to have a row of lamps for any balls-to-go.
On the Ball-In-Play disc, there are 2 sets of contacts, one for the lamps, which is 10 sets of contacts in a row, and another one which is only 7 contacts in a row, and which are only concurrent when the one for the lamps is at 4 or higher; the row for the lamps drive the lamp for the number of balls-to-go. This 7-contact set drives the Control Bank Reset coil, but it begs the question as to why it has not been designed to apply to the state in which there are 3 or less balls-to-go.
I suppose I could wait until I get my overhaul done to see how the behavior is different, but I was hoping someone who is an owner of this wonderful title would know.