I'm wary too, but have taught enough students to realise that it’s often best to tackle a problem from several different directions where possible. I’m just wondering if that could be a legitimate argument for obtaining lots of saxophones, for you could argue that each exhibits properties that enhance your playing on the others, but I digress…
…Curiosity got the better of me and I signed up for the free lesson, it comes in the form of a PDF that you have access to for 24 hours. Understandably they’re not giving away all their secrets but there might (I say might as I’ve only had a quick scan through it) be enough to see if the idea has any merit. Having just had ago at what looks like a simple exercise I realise how little control I have over my individual fingers, which is what this is expected to improve.
Chatted to my teacher about this and she suggested that my lack of experience with the instrument and with jazz and my brain/eye/hand coordination will be the limiting factor NOT my fingers and that whist finger exercises undoubtedly help, its nothing I need to worry about at the moment.
Judging on my last lesson yesterday - she's pushing me hard on proper jazz articulation - she right! I can't play anything quickly at all now!