Originally Posted by bassgod0dmw
I use 35 to 95 dead strings to gig. Buy them new but don't gig them until they have that classic tone ! I've never had a problem with sustain!
Cant imagine what it might be! Have you checked every single fret to make sure you have full sound everywhere?
Sometimes eq can be a factor though. For example going the other way....if I do a gig where I need to be bottom heavy or boost the bass right up then the sustain won't stop until I release the note! Maybe there's not enough bottom end on your tone or the right eq?