I e-mailed the link to Don Taylor (the hillclimb tech person) for review and he stated it was acceptable for the hillclimbs.http://www.swracecars.com/roll_bars.asp
10-Point Roll Cages
$249.95
S&W 10-point roll cages include all the components of an 8-point roll bar
plus roof tubes and windshield crossmember or hoop and windshield post runners.
Made of 1-5/8"x.134" wall mild steel tubing, S&W roll cages meet and exceed NHRA, IHRA & NMCA requirements, see tech tip at bottom of page. Our 10-point roll cages are designed to remain behind the firewall and require no modifications to the stock dashboard.
S & W 10 point roll cages feature notched tube ends, where applicable, for
ease of installation.
Steve