Sorry for this great delay! I did have a Cobra halo seat at one time, but I never installed it in the car because my shoulders were too wide to comfortably fit in the seat. My only seat experience in the Boxster has been the Recaro Profi XL, and the regular Profi, both which fit great in the car, both on OEM sliders and on the Brey-Krause floor mounts.
