Where to buy Strobe Slipper?

Thanks for all the offers to sell me a Strobe. The problem is that I like to have a consistent source of replacement parts, especially pads. I hate trying to scrounge up obsolete parts at the last minute before I can run my truck. The RR slipper isn't too bad, but as noted it can wobble like heck! Hopefully, the Slipperential from Mike will be out soon.