A while back I bought a 6 point Sparco harness on sale. Finally looking at installing it. I noticed that the new cams rules mean that the angle has to be flat or at a 20deg decline. Previously I had my 4 pt mounted to the floor behind my seat, so a greater angle.
My questions are:
1. can you convert a 6 pt to a 4pt? The crotch stap on my harness is fixed to the central buckle. Is it ok to have this loose and just use the other straps? I don't want to rip apart my recaro to mount the crotch strap.
2. Can I mount the rear bolts to the parcel shelf? Can I just use plates to mount the bolts to? I know I can't just screw the bolt into the parcel shelf itself. Or should I just mount it to wear the back part rear seat goes (this is fixed in my car - ie doesn't fold forward).