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Anybody with some helpfull comments about this bass FX ?? ... i've been searchin for some info on some tricks or shortcuts but can't find anything and the operation manual has only some basic stuff ... for example, if there's a way to set it so that if i wanna change effect, it'll saty on the...

I'm a totally new to effect pedals, never used them. Now I got a Zoom 506 Bass multi effect pedal for free. Worth plugging in? Any comments appreciated. Patrik