I've been riding those daily for years. Today I am going to Alameda naval base where they've set up an EUC racetrack on the tarmac at noon. I don't know what part your'e taking issue with, but physics is best communicated with free body diagrams and equations, which are difficult to articulate in conversational english and interpret correctly as a reader. I'm sure there's countless ways to misinterpret and nitpick my comments, but I'm not going to squabble over those or spend too much time rewriting anything — I'll just say I stand by my arguments from years of experience, so try to read my comments in that light first. If you had an actual point to share, share that instead.