I have an alto Couf Superba I and a Jupiter 787. The neck of the Couf is approx 1" shorter than the Jupiter. Ergonomically, the Jupiter is nicer to play, but the tone of the Couf is wonderful. So, I am thinking about getting a newer Keilwerth only if the neck is not the same length as the Couf. Does anyone have a Couf to compare to a newer Keilwerth?