I know we haven't seen many quad throws, we've seen a few sals and one toe that I know of. I think there's a reason for that though. Skaters aren't well rewarded for trying quad throws. A 4s throw is only worth 8 points compared to the 4.5 point triple. In singles, a 3s is worth 4.2 while a quad sal is worth 10.5. This point difference encourages skaters to try the harder element. I really wish there was a bigger point disparity so that we'd see more growth in that department. Just thinking out loud.