Originally Posted by dbyrd
Please say more about the difference between the Pro and non-Pro as I am considering both.
There are a few major differences between the QF Pro and QF.
The QF Pro uses a cam buckle (press to release) rather than a standard seat belt buckle, making it easier to get out of during an emergency. The Cam lock also as a provision for a sub-strap, so in the future, you can add a sub-strap and connect them to the Cam, essentially turning the QF Pro into a 5-point harness. The QF cannot have sub-straps added.
Also the QF Pro has been specifically tested with a HANS whereas the QF has not. If you intend to use a HANS, Schroth recommends using the QF Pro, since the belts are angled specifically to fit over a HANS. The GF does not have angled belts for a HANS.
PS. For those in the group buy, you should have received a PM. If not, please let me know.