Here's also a link for some documentation on using Gerard's code.   The source is on fgt-ops, in ~/Instructions

There are two steps, and perhaps one or both of them are useful for others.

1. Convert sfs to txt file
2. Plot data in txt file using gnuplot

Executables are on fgt-ops.  Note also, runs less than 37 or so were with the "first" side, while later runs have all (so far) been with the "second" side.