This is one of four rollover baffle pieces I received from Lawrence Waldron. He is in the UK and makes LAW saxophone mouthpieces. This one has a baffle in-between the IV and II model that I have also posted clips for.
Steve Neff has been playing and teaching saxophone and jazz improvisation around the New England area for over 30 years. He is the author of many best selling jazz improvisation methods as well as founding the popular jazz video lesson site Neffmusic.com.