The one I used had something I called "Stickum", and that was a long time ago. I tried a sax that had a piezo pickup drilled into the neck, and although it was a good make sax, I really didn't like the way the sax responded.
I was playing the same model sax at the time, but it had much better intonation, and a greater variety of tones from subtone to overblown distortion. The varitone sax couldn't be overblown for that nasty sound that works so well in the blues. I don't know if the pickup was to blame or not. The early Mark VI saxes have a reputation for being better, so it could have been just a lame horn.
Like this one https://www.robertoswinds.com/products/vintage-selmer-mark-vi-varitone-tenor-saxophone-w-original-amp-ser-143032-jp
about the pickup https://en.wikipedia.org/wiki/Varitone
Notes ♫