All my knowledge so far is hearsay, although, from reliable sources. I've only been riding for barely over a year, and I have had good instructors and riding partners so far to help me progress this far, so I value their opinions(case in point, from never being on a bike, to dragging knee within 3 months). To be honest, I'd love to get on the S1kRR, and am not particularly fussy about what track I go to, as long as I am participating objectively. I'm simply acting on recommendations as I've heard them.