I recently purchased a Jack Cassady Signature bass, and I love the thing. The trouble is, it's very prone to feedback. I'm new to this sort of thing and really don't know what to do about it. Is it as simple as stepping as far away from my cabinet as possible? Unfortunately this isn't always possible, as most of our gigs are on small stages. I think the problem is exacerbated by the fact that some of our songs require me to strum an open string while also strumming a fretted string... the open string constantly ringing out seems to make matters worse. Any advice would be much appreciated!