JK Exclusive Trombone 12E S1

Some time ago, I ordered the JK Exclusive 12E, the Jet Tone Buddy Morrow (BM) signature and the Schilke 43E from Thomann, all small shank. I mainly play jazz, blues and various South-American styles and I prefer for a mouthpiece to give me a clear and concentrated tone, to enable easy articulation and lip trills.
The Schilke didn't really stand out, so nowadays, the JK and the Jet Tone are my favorites. They're both great in all respects that I mentioned, but the Jet Tone is by far the finest of all, mainly because it has a seriously bright and focused tone that easily cuts through the mix. Higher notes are fairly easy to reach on both mouthpieces, but tone-wise, the Jet Tone is my favorite with the JK in second place. I would absolutely recommend both of them.