>I think also the fact that you don't get the system on other types of saws (band saw, mitre saw, circular saw, etc.) says something about the efficiacy. No, I

>I think also the fact that you don't get the system on other types of saws (band saw, mitre saw, circular saw, etc.) says something about the efficiacy. No, I don't think it says that at all, and you should reconsider your statement. I think it's a matter of geometry more than anything else. The technology works. People do stupid things all the time. Having a backup safety device is a good idea, not a poor one. Or would you argue that safety belts and fire extinguishers are also unnecessary for "responsible" people? What is in question, is the ability for an explosive block to stop a blade in single-digit milliseconds, before it can travel far enough to cut the user. On a spinning saw blade, firing an aluminum block into a spinning blade and dropping the assembly away from the user is a matter of geometry. How would this work on a band saw? If you can come up with a way, I believe a very lucrative patent is in your future. Same goes with the other saws you've mentioned.