Double Bass Any explaination?

[nicechuck]

When the strings were set up higher on my DB, the high C above the octave on the G string was dead. Now with the strings lowered, that same note has more sustain. I haven't done anything to the fingerboard. Can anyone explain? Seems the opposite would be true

 

[arnoldschnitzer]

The higher the strings, the more your flesh surrounds the string when pushing it to the fingerboard. Unless you have leather-like callouses, that is.