Not a real problem, but an unexpected correction. When testing the C-mel side C I heard a small hiss, but the saxophone could play easy to the lowest note. With a leak light I found the culprit. A small leak at the top of the pad. corrected in a few seconds with a drop of silicone paste brought on with a needle. Just close it without excessive force. Such a leak can occur when you close a solidifying pad to far. Not a big problem in itself.
With my usual saxophones I could not play effortless to the lowest notes with a similar leak. Possibly because they are in the large bore area and this C-mel is in comparison a much smaller bore.
Does anybody have an opinion on bore size and the sensitivity to leaks?