[Ed_spf1255]

I'm planning to install 5 point harnesses on my newly acquired Cobra (spf 1255). Why? Since there are no air-bags it seems like a good idea; planning to autocross and it seems like a good idea for that too.
Questions - Bell sells Pyrotect set-ups for about $140 each vs. $170 for the Simpsons (both cam-lock). Any comments/experience?
Mounting - roll-bar vs bulkhead? I'm not tall - 5'7", so the problem of slipping off the shoulder with bulkhead mounting might not be an issue. Any general info/comments appreciated.
Thanks much,
Ed