Elixir Strings are very good at helping to control the problem. Jaco Pastorius was rumored to eat fried chicken and not wash his fingers before recording or performing, who can knock his sound ??? I heard "Elixir" and she likes it...

Mostly the squeaks are best addressed by improving the fretting technique. I've had the pleasure of having had some studies with Don Ross and I would have to say that proper left hand technique is probably THE most lasting thing I learned from him. It's something I ALWAYS place first (technically) in my own compositions and something I always make sure to pass on to students of my own. Once you get the picky parts figured out about string muting while fretting and making sure to nail the frets' 'sweet spot' every time, then you will not have to make any unnecessary left hand movements leading to the squeaks and pings.

Why keep trying to disguise the problem when a bit of hard work can eliminate the problem altogether ?

Restless Voyager