the "patent" comment was meant to be sarcastic. i just get a little out of sorts when people who are not familiar with a product or system but have heard someone else's negative "sales propaganda" and comment as if they have intimate knowledge. i have not seen any actual negative commenting here that wasn't accompanied by the introduction of another product or sounded like a competitors talking points. yes i am a Toyota guy, yes i like the product i represent but if there were no benefits from the SAS system there would not be so many Toyotas out there. spit out the sour grapes and move on.