No doubt whatsoever Jay Metcalf is the best saxophone teacher you can find online ! His Pentatonic and blues scale  methods are extremely articulate and well structured. Moreover, rather than wasting time promoting his course ⌛️, he focuses strictly on the topic covered in his videos  which means you cover a lot more ground. Well done and thanks for your help over the past 18 months Jay, I wish my dedication to practice was more worthy of your classes