I recently purchased a Racetech RT4009WHRV. Here's my reasoning for selecting this seat.
- Side head restraint - lateral support
- Side shoulder restraint - lateral support keeps my torso supported with the rest of my body and doesn't push my shoulders forward
- 6-point mounting configuration (more load paths)
- Fit - I tested just about every seat on display at the '09 PRI show and the Racetech was the best fit. I do plan on getting a foam insert made for additional protection.
This seat was part of the Viper Comp Coupe safety package that had some safety heavy hitters involved. Additionally this seat was the basis for the new FIA spec, albeit beefed up a bit. Those points are not deal makers/breakers, but they give me more confidence in the seats ability to protect me.
I was considering other seats based on cost, but my Dad reminded me that safety is first. Skimp on other areas and go for broke on safety equipment. I can always upgrade brakes, engine, tires, shocks, etc. later if I'm alive.