TromboneChat

I made a review on a chinese-made bass trombone I had. Check it out if you're interested!

I watched it. I was thinking of buying one myself but I found a used King 7B recently, the horn yours was copied from, and bought it instead. Same ergonomic problems you mentioned.

That's interesting. So it seems that the ergonomic issues are moreso with the overall design than the Chinese horns themselves

Yep. My 7B has the same ergonomic issues with my left had that my buddy's Shires Q does. The web between the thumb and index finger supporting the the bell brace works great for me, a feature lacking on my horn and the Shires.