
djohnson728!
Your SP chip is the 731.
The SS Reel chip is the 6199.
It's good that you've tried the older bills with the small heads.
All the newest bills above the dollar bill have encircled, large heads.
I don't know if the validator firmware WBA-11-SS is correct or not.
You'd have to wait for a better answer from those that know more about the WBA's than I do.
Personally, I've only played with S+'s that use quarters.
I have one S+ that is using a UBA-10-SS, but it uses a special circuit board to communicate with the S+'s protocol.
You can download a PSR sheet from the NLG File System but you'd have to be a Contributing Member to have access to it.
To be a Contributing Member, just scroll down to the bottom of this page and you will see the subscription link.
Also, go to the S+ section of the forum, I believe the first few posts are more like a "Look Here First!!" FAQ's about your machine.
Lotsa information there!
Here's a link to that area...>>>
/nlg/index.php?topic=28444.0