I'm kinda familiar with how pulse width modulation works, I hear people talking about frequencies, megahertz, duty cycles and what not. Still don't have a clue on how to work on it though lol, when it comes to electronics, I'm just a parts changer. Like I told Dan, I was keeping a pretty good eye on stuff. The esc was cool to the touch just before it gave up the ghost. Internal short of some sort, you should've seen the smoke and fire, it was a pretty good show. Only thing that really sucks is that it melted most of the connections attached to the esc, also left a little discoloring on my pretty blue anodized motor lol