First GTG and first time I've seen/ heard ported saws run. Video doesn't do these saws any justice!
Here's Leeha running one of his amazing big cube saws (Kart racer type engine and gear drive?). The open sprocket is really cool -- you can sort of see it when he completes the cut.
Recommend clicking the youtube logo to view on youtube.com, choose 1080p HD from gear (settings) and finally choose full screen to get a detailed view of the chips coming off this thing.
Oh my gawsh. I've never seen a pile of chips nearly knee high before out of one cut lol.