I am with ya Jeffy, you do not want to put a skid over the current skid, TJ's drag their behind as it is. So any skid that lowers it even more is pretty much a waste of money.
Kilby is good, but I am partial to the Savvy one you can stuff the tank up as high as it will go, it weighs no more than the stock skid, is very strong and they claim that if you demolish the thing they will give you a new one. Besides it looks bling and 6160 T6 is some really tough stuff