I'm still looking for something that will fit my Yani SC992. So far:
Stock Yani
OK, but lacking a bit against other mpcs I have. A sort of a middle of the road thing but nothing special.
Caravan
A focused, dark and steady tone, but is too small, and is plugged all the way, and the neck almost pushes the reed o play in tune. Also a bit less volume. Harder to twist the tone. May be agood thing fro classical music. Incomplete.
Selmer S80 C**
A bit loud and I lack ability to control it well.
It works reasonably well but I would prefer something better.
Beechler Belite 7
Similar to Selmer but abit more screemy, and a bit less controllable.
It was hard to find a matching reed too and between all Vandoren and other better reeeds, only worked with the cheap RICO reeds.
Also just as Caravan is too tight, this one is too wide, and slips in too easy.
I should now replace the cork, to match it, but it's not better than S80 C** and don't want to do it ona new Yani.
So, the Selmer S80 C** it is for now but I'm not too happy with it.
All the above is subjective, and not a criticism of the mouthpieces. Just listing my impressions.
For example, I play S80 C* on Alto and it is great for me.
From the suggestions above, I may try the basic Yamaha 4C on the Soprano.
So still shopping, and wasting money ordering different ones.
I'm planning a trip through Canada in September. Any advice on where I could try a range of Sop mpcs?