People. I recently joined a band and was asked to put away my trusted Sovereign horn and to play the band's Courtois. The whole horn section use them and the tone quality is different..blah...blah...blah. I have been impressed woth the sound production (a bit brighter than the Sov. but still easy to produce BIG sounds) and the valves are fantastic. Although I do have a real problem with the slides and tuning. The instruments (all three of them) are incredibly sharp and the build quality (especially on the tuning slides) is terrible. I was wondering if the 'sharpness' is a generic problem across most Courtois horns or did we just get a dodgy batch? The cornet section also have Courtois' but they are fantastic.