So i recently got a Carvin B50F 5 string fretless. I love Carvin products. I have a guitar by them and a micro bass combo, both fantastic. The bass itself was amazingly built and the pickups were fantastic. HOWEVER: the low B string was totally unusable. Everything from a low C to a G and all the way up the neck buzzed horribly. I raised the action as high as it could go and it was still terrible. So I sent it back to swap the neck for a fretted neck. The QUESTION is: is this problem simply inherent to five string fretless basses? I love the sound of fretlessness, and I'm looking into a four string, which feels like DEFEAT. Could y'all please chime in with thoughts on this? Does Carvin just make bad 5 string basses? Are 5-string fretlesses inherently buzzy? (I don't believe that for a second) Was there something more I could have done?? What the heck!!