How do unicyclists riding those “really tall” unicycles mount and dismount with serious bodily harm?
Very carefully! Really though, it’s all about practice. With more pracice. As far as technique goes you may want to check out our books. We have a great new book called Unicycling: First Steps, First Tricks. Not only does it cover beginner unicycling, but it also walks through how to do many different unicycle techniques and tricks.