I watched your crash video and was immediately reminded of a crash I had when I was 16 and riding a KZ 650. That was a lot of bike back then (41 years ago). What struck me about your crash, after your crash that is, was you got into a turn that had a decreasing radius and when you hit it, that's when you lost your line. I did exactly the same thing, only I was in a right had turn without benefit of a guard rail to stop me when my old enemy, centrifugal force, pulled me across the oncoming lane of traffic and over the edge of a hill. I was following my buddy, who was a much better rider, and letting his speed set my speed. Fortunately, there was no oncoming traffic and I left the bike while it was still on the dirt shoulder, so me and my dumb ass 16 year old body were the only things to fly through the air, hitting some low hanging tree branches and landing on a nice soft cushion of... poison oak! Anyway, it was a learning experience. I don't let riding partners set my speed for my anymore, fast or slow, I pay a lot more attention to warning signs posted in advance of turns, especially turns where the exit isn't visible from the entrance, and I take to heart what I should have taken to heart 47 years ago, break early and accelerate late. I just wish I was wise enough at 16 to take to heart what my math and physics teachers were trying to convince me of; one day, all the stuff we're trying to teach you really will come in handy. I just didn't know it would be while I was riding like an ass hat on a too fast motorcycle.