So here's a few pics of the damages. Not even 50 hours on the piston. I was able to clean it up last time and after the cylinder looked new. This time it'll have to be replated. I'm considering abandoning the 2-stroke for another big bore thumper to keep my 450R company. I know better than to hold these pingers wide open for extended periods of time which is when it locked-up today (93.3 on the GPS). I may have sucked debrie in the cylinder last Sunday when it hydolocked crossing a stream. Who knows? I'll post video of when it locked-up for anyone who interested. Scary at that speed for sure. It runs a 40 PJ, JD red 3rd, and 168 MJ with 45ish:1 Motul 800.