I was working up a great harda$$ power trio. Solid drummer, smoking guitar dude and me on bass. We all have good vocal ability. Enter a 4th guy on guitar and vocals and it turned to $hit. Control issues, power struggles and problems with direction. It all stemmed from the 4th dude. The guitar player and I are committed to continue, the drummer is on the fence and the 4th guy is gone. We have a line on a new drummer but we are on hold until original drummer makes the call. I have been in several trios and they all worked very well. I have been in larger groups and they worked but not as well as the 3 piece acts I have been with. What is it about the groups dynamics and the three piece band? Has anyone else experienced this phenom?