The Vandoren mpc is a "Meyer-type" mpc, why not try the original?
The Vandos seem to have more consistency, you are just more likely, at least in France (where I bought mine) or Switzerland to find one which fits your expectations. It took me several years to come across a Meyer that really does it.
Edit: dunno who respectively distributes Vando and Meyer in France and Switzerland, but Vandoren obviously gets a ways better service. On n'est jamais si bien servi que par soi-même.
Besides that, compare Vandoren's and Babbit's website, and try to choose your mouthpiece accordingly... Vandoren even has a very handy iPhone application.
Edit II: I don't have any interests related to Vandoren. Their domination on the local clarinet mp market even scares me a bit. (scare ? en français, je dirais plutôt agacer. ****-off ?).
Edit III: but I do play Vando pieces on my Bb and bass clarinets. Ira furor brevis est.