I don't use brackets because they are not legal in the classes the car is actually competitive in. What's more I never really cared because frankly they aren't necessary. I managed to win a lot of stuff in solid axle cars that were lowered, both in ESP and F-stock, Camaro and Mustang both without having brackets. I'm not one to seek rule changes to suit my personal needs and it's pretty clear that they aren't necessary and the rules aren't illogical. In fact there are already certain rules that allow live axle cars some mods that aren't relevant to any other car, I guess that's not enough for some folks. You might want them, LCA brackets, and that's a different thing. And I've got 'em if you want them, and bars that will work with them too.
Stock height S197's hop like mad. Lowered ones don't. And when I was running both cars in ProSolo I was leaving at time upward of 4500 rpm in both the Shelby and the 5.0, without wheelhop except when my shocks blew up at the ProFinale in 2010... Put my Koni Sports back on and voila, hop gone. Does launching at 4500 seem like a car that can't get any power down??????? Didn't think so.
I sell brackets. And I sell Whiteline bars. In fact I have a pretty decent deal on the Whiteline bars if that's what you want to do. While I have my preferences I'm not going to refuse to do business with you for having yours. But if you ask, I'll be honest with ya.
And it's not a cost factor either. I don't skimp on my stuff, I like winning to much. I also don't spend money on things I find to not be important (or not legal).
My bar is not designed about brackets for the simple reasons that I though I proved it wasn't necessary. Which is why I also carry other brands of other things like bars that will work with brackets if you are hell-bent on thinking you need them. I've got more variety of parts, on purpose, than most just for reasons like this.
FWIW, I think this video pretty clearly illustrates my point... It's a Shelby GT, you already know it's lowered, and you can see it's low between the springs and the tires I was running. I'm also paired up with another one I setup... notice neither car has any wheel hop... and seem to put power down ok even with the Trac-lok diffs. And this lot isn't very grippy either, the car hooks even harder on concrete.
http://www.youtube.com/watch?v=-DsdX9PybR8 As for the notion of 285 gumballs and special diffs. Wow. ok. Well all autocrossers run "gumballs" and many including Terry run even bigger ones than I did when I was in ESP... And the "special diffs". Uh, no. They are stock diffs, rebuilt in the stock way (no extra clutches or rearranged plates)... using Ford carbon clutches which don't bite any harder... they just don't wear out as fast as the organic clutches. And those are stock in Bullitt's and GT500's, really not very "special" and legal for that car based on a TSB for noise abatement.