No one can argue with your actual experience Duane, but I was mainly pointing out that Flygirl shouldn't be worried about having an IRS in an ERA and "beating on it" a bit on the street.
I have about 500 hp in my Unique now (3.54 posi) and I've launched it hard several times minimizing wheelspin for maximum acceleration. I've never run on slicks or a prepped track, though, but I have experimented with lowering the rear tire pressure (beyond a certain point traction actually gets worse).
I wouldn't want to abuse my luck by regularly drag racing my setup, but I've found no reason to consider it especially fragile either.
