Curious at to those who have used it on their PT SL 2.4’s as to whether or not you can truly only use it once. I have 2 PT’s, one for my training wheels and the other for my race wheels. It seems ridiculous to me to have to spend $200 to update my hubs and I suspect it can be used more than once. They say they want you to send it back so as to “recycle the updater” yet I doubt that is their motive. Though I can see justification to have to pay some money for the upgrade, $100 per hub to me is way over the top.