I only have 5 basses at this point but I go up a bass or two every once in awhile, so I’m gonna answer anyway! Four string playing is split 40/40/20 between the Reverend Decision/Warwick Thumb/Fender Jazz depending on the tone I’m chasing. I almost never play the Mustang. Nothing at all wrong with it, nice to have but not indispensable. All the 5 string stuff is played on the EBMM Special 5H. Typically split the 4 string to 5 string ratio 75/25 which is why I only own one 5 string bass.