Pretty certain it won't register loops (shame) except for heights.
The G' forces can be calculated from turning speeds though, realistically the real "Gee" forces are generated by how much you destroy the lip.
For those doing the tests the GPS's will have to have the setting changed to constant recording rather than min speed, else they won't log during the jumps.
Grumps
You haven't seen Kookman in action yet, all I need is a set of floaties and I'll be set.