I think it's great for others to offer an alternative. I hope SawStop doesn't block this technology with a patent suit too. I like my SawStop saw but I keep my old Ryobi functional so I can use it's 6 inch dado set (haven't purchased a 8 inch yet) and to cut wood that may have nails in it. The drawbacks I see to the SawStop technology is the possibility of triggering by wet wood, nails (or staples) in the wood, the cost of cartridges (including a unique one for dado blades), and the destruction of a blade if the cartridge triggers. The Felder technology seems to avoid the blade damage and probably the cartridge cost but I wonder about false triggering. If the only consequence of a false trigger to the Felder is you push a button, that wouldn't be as big a deal, however.