Fred,
Can you post, for lack of any memory, the different models of the PST displays. List their intended use, software, and what they display.

PST a
PST b
PST c

All of the displays using the Alpha designations use GAZc or GAZ4 circuit boards with all 8 possible digits being addressed.

The "A" model is a dual display designed for NASTAR the Red course uses rotary dial 1 and the Blue uses rotary dial 2 toggle in the middle. The lay out is: bib bib bib medal sec sec 10 100. Supported by fiddleware and SST NASTAR.

The "B" is single line for FIS/USSA races. The Bib number digits flip to rank when the race finishes. The rotary dial is set to 1 with toggle in the middle. Layout is: bib bib bib min sec sec 10 100. Supported by SST FIS/USSA.

The "C" is a dual line club racing. The layout is exactly the same as the "A" with the medal digit now being used for minutes. Supported by SST CLUB.

The "D" will be a dual line version of the "B" with the second (Blue) line displaying the current leaders bib and time to beat. To be supported by SST FIS/USSA

All of these variants are designed to let the user have maximum numeric display using SST and other software in a portable cabinet.