Reviving this. I have some questions in regards to the planted base mount or others like it (sparco makes them too).
So what I want to do is get a planted/sparco base, with sparco rails on top, and recaro side mounts with my SPG on top of that. The problem with the recaro SPG side mounts is that the rear mounting hole is placed so that the bottom of the seat is flush with the bottom of the side mount (L bracket). I realize that with other rails like that Bride FG, the seat can be mounted lower, between the rails.
So my question is this:, with the mentioned setup where the seat can't be any lower than the top of rails which are mounted on a flat base mount, will it be low at all? Lower than stock even? Im 5' 6" but I still want to sit lower than stock (S14). Has anyone had any experience with this?
Recaro SPG with recaro side mounts for reference:
