Ok, what kind of hair-brained, dim-witted thread is this, Bimp? Well, those who play live (with band members changing from time to time) can relate. Seems in the last 3 or 4 years of performing, my band has the capability of becoming tight, confident, dynamic, and off the hook at times. But, whenever we have a change in drummer or vocalist or have an extended break, it takes the band a couple of weekends to regain the authoritative, collective sound that I strive for. As we progress as bassists / musicians / bandmembers, I would think that we all wish to achieve as certain level of professionalism and confidence. In other words, we could lay down a killing night's performance after one or two rehearsals with some new bandmates and or material. I often wonder when I hear incredible shows headlined by the likes of Michael McDonald, James Taylor, or (please add your own examples) etc... do these cats in their band have a "break in" period? How many rehearsals, or sessions, or performances did it take to make the live magic that they do? What about your band?