Well I have my custom 1" hollow, heat-treated bar in my car now -- and I love it. The weight difference between the solid BAT bar and mine is amazing, and even a few pounds on a suspension component does matter. My bars will be available for purchase next month, once I get back from Cougarfest and come with poly bushings and stronger endlinks (I've seen too many Cougars break the endlinks, so I designed new ones).
E1