The guy who owns aussie worked for detriot or lock rite. Saw that design sucked, improved it (springs and pins) and made his own locker.
An Aussie will not slip. It's locked all the time.
IMO, it's the best on the market. Never have I seen a pin broken on one.
They've got the BEST warrenty.
I ran one in the front of my Grand and loved it. I'll be running one in the front of my Toyota too.