Fantastic Brush, especially for the price I got mine for 2 years ago. I may need to rotate in after FFFMM; but I agree with the MisturaI have two Yaqi brushes: Moka Express (Two Band Badger/26mm) and Acqua Highmountain (Silvertip Badger/24mm). They are very good for what they cost. Among them, I prefer Moka Express. It has more backbone (although soft), is a better lather maker and the handle is gorgeous. But I like my Mistura much better.
I hope I helped you in some way.
+1I agree with giving the brush more time. Semogue boars are well known to take a very long time to fully break-in. I also agree with NorthernSoul that the 2 band would be a great choice - much softer tips. But the Mistura will get better and better.
+1Another vote that you continue to use your brush to give it time to break in. That can take awhile!!