Thought I would follow up. Bought an OMP RPST from Ron at Discovery Parts. I tried a bunch and it came down to this OMP or the RaceTech. Money no object I liked the Racetech better. However, I still liked the OMP alot, and for about $800 dollars less, I chose the OMP.
Put it in the car and drove for the first time this past weekend and really liked it. I am going to get some additional lumbar support and/or try changing the mounting position a little bit. Would probably need that with any seat though.
If you are looking for a seat, go see Ron at Discovery Parts, located at Atlanta Motorsports Park. He will let you try seats all day if you need to with good advice and info but no pressure to buy anything.