I noticed, that lot of upright bass players play mainly (or only) using just index finger for pizzicato. So when I started playing upright bass I played that way. My teacher (person with music school degree) told me, that I should play using index and middle finger (like all the time) and that this will give me more possibilities in future. What do you guys think? Should I as a beginner start more focusing on playing with two fingers, or maybe to focus more on getting good sound with only one?