The Soulo mute is easy to clip on the bell of my Bach (actually easier than my Humes & Berg), and was easy to adjust into both a traditional position, and also a tilted position. This allowed for a difference in "tone", that I was not aware possible with a bucket mute.
I have found this mute blends well with others in my big band section, and also has a very good tone & intonation for various jazz ensembles I play in.
The price is $68, which is quite a bit more than the $25 Humes/Berg bucket mute, but can honestly say this mute is worth the extra price. Also, have found I use it as not just a bucket mute, but also as a fit between my cup mute, and my old bucket mute.
I would highly recommend this mute to add to your collection (that you will actively use).
Reviews can be found at:
http://www.brassreview.com/reviews/s...cat/173/page/1
And the product website can be found at:
http://www.soulomute.com/
Update: Now available for Trombones