The blade guard discussion is a non-starter. Look at how many operations can't use one: tenoning jig, box joint jig, panel beveling jig, and most cross-cutting operations when a miter gauge extension is used . . . . and the list goes on. To be truly effective, the saw needs to sense at the blade and stop and/or react quickly. I'm not a Sawstop owner, and I'm not planning to buy one, but if someone gives me one, I'll take it and sell my Unisaw.