I see both "XPIN" and "Rottendog", as well as possibly others, make 5v LED replacement for the old Williams System 7 florescent displays.. I've seen good posts about both, and it seems the designers of both of these seem to be "good citizens" of the classic pinball community in general, but I've never seen a comparison or pros/cons between these boards..
Would there be any substantial reason to buy one brand over the other?
Anyone have any experience with each that they can share?
FWIW, my application would be a Black Knight.
-Steve