Side Mounted Fixed back seat brackets?
 

Has anyone put in fixed back racing seats using just side mounts bolted to the floor yet? I'm curious if I can get away with not using a bracket / slider / side mount combo and just bolt side mount to the floor.

Probably looking at using the standard Sparco/Planted/Recaro type aluminum side mounts.

Thanks in advance.

ps. This is part of a Roll Bar / Racing Seat (FIA) / 5 point harness combo I'm putting in next month.