I own a MM5. But I really don't feel comfortable playing it. I tried playing only my 5 for 3-1/2 months. I was playing acceptable Sat. night but my shoulder was getting tired so I broke down and played my 77' MM4. I felt like I was driving a porsche. I was playing very very good for not touching a 4 for 3-1/2 months. My questions are 1.)Do I give up trying to play the MM5? 2.) Should I try a custom neck on my MM5 with the string spacing of the 4? 3.)Should I just sell my MM5 and buy another brand bass? Please some of you fivers have surely had simular problems. The way it looks now unless someone changes my mind I'm going to have a special neck made for my MM5 with the spacing of my MM4. Please Somebody stop the madness.