hi i just got a baby bass and i seem to have a problem which i hope one of you can help with. Whenever i play it,it seems to twist in my hands therefore making it awkward to play. Also because of the lack of thickness of its body, i cannot rest it against my chest to play like a normal double bass and therefore i have to use a lot of thumb pressure which i find difficult, has anyone else had this problem and found a way of solving it please. Keith