I spent a day at sax.co.uk trying out variousdifferent mouthpieces.
Mainly the jody Jazz DV, Otto Link Super Tone Master, Mayer and Otto Link Ebonites, all with various different reeds.
With regard to the jody jazz:
It is rather expensive, but comes in a really nice wooden case.
The mouthpiece I played obviously very well made and a lot of thought had gone into it and it's construction.
The mouthpiece was so free blowing it didn't feel like there was a reed on it! And this is without exaggeration! It certainly made it easier to tongue fast passages!
A downside of this is that you get no resistance from the mouthpiece which some may regard as good but I prefer to have something to blow against and get some feedback from. I found that playing loud (which you could do so easily) felt very strange as it didn't seem like you needed to put much effort into it.
At this point it was a winner for me as I thought I'd be able to get used to this feel, and it would aid tonguing, double tonguing etc. and just help my mouth keep up with my fingers that little bit easier.
In terms of tone, this is where it failed for me. It's tone was incredibly flexable. It could play smooth and raucous and at all volumes, quiet as easily as loud. The entire range of the saxophone was really easy to get, the low and high notes being a breeze just like the rest of the sax. You felt if you knew what to do you could get another octave out of it for the same effort as before.
Unfortuantly it's overall sound was clean, crisp and bright.
As I have a Hanson SA-8-24K-F, my sax is very bright and incredably pure already. The mouthpiece was complete overkill for my instrument.
If you have a vintage saxophone, or one which isn't quite so bright naturally this mouthpiece would be incredibly good fun, and would be an asset to anyones set-up.
weather it warrents the price tag is another thing coming.
As you probably know, I went for the Otto Link, and can't say that I really regret it either. Though after writing this review I am quite liking the idea of one for my Martin. Though it's not really necesary as the Otto Link works lovely on that as well.