Oh that's rich. You're new to the forum, you walk in knowing full well that you're throwing a bomb, you get a pile of people replying with factual information, a few with a little snark, and then you act thin-skinned and lecture us on our tone. And on top of that, you ignore the most important message that was repeated to you again and again - serious bicycle accidents involving your head can happen on trails and in the absence of appreciable speed.

This is perhaps the most constructive and respectful forum on cycling around. If you don't believe me, try posting the same query to the road biking forum and see the response you get. A whole bunch of people took some time to give you the benefit of their experience. If it didn't change your mind, that's your business, but if the information provided isn't enough for you, then I suggest you and the rest of us move on to a different topic.