I've had my Kessler Custom Tenor since 2009 (it's one of the older deluxes with the date stamp on the bell). After playing it I've always run the cloth on a string through it to clean it out, but never taken a peek inside. Today out of curiosity I shone a light in there, and found the inside of the horn had big gobs of white wax (I assume thats what it was) melted all down the inside of the body tube, like you see on the outside of a candle that has burned for a while. The horn is barely played as it basically sat in a closet for 2 years, and theres no way I melted wax into it. Is it just a leftover from the manufacturing process? What on a sax even uses wax like this? I poked a coat hanger into it and managed to clear it out. Very odd.