Denis Wick 3180 Heritage Trombone 9BL

Some comments after almost 6 months of use.
I was using the same Bach 6 1/2 AL for almost 20 years, I needed to change it. I had had the chance to try this one before buying it, I wouldn't recommend buying it otherwise.
Pro :
- General quality, really great. the felling on the lips is very nice, and the balance seems right for me.
- Clarity of sound.
- High Range : the mouthpiece did not really increase my high range per se, but it is easier to catch high note with some consistency and more clarity.
Con : The main one is that I feel like I did lose some flexibility, especially on the lower range. Octave jumps towards the lower range are more difficult.