I've been playing bass for about 2 and a half years now and I am playing Elegy-Bottesini which requires sick vibrato control. I can do vibrato a little bit but I have no real control. This especially is apparant when in thumb position. I'm wondering if you guys have any help with practicing it/developing control over the speed and general vibratoness. My bass teacher says it's not something you can teach so he doesn't really talk about it. All that is said is he chose this peice so I can develop good vibrato since that's the one thing I lack in my playing. I'm sort of at a loss that he does not give me any tips or anything. Hopefully you guys/girls can give me some things to try and work on to develop good control of vibrato(especially in thumb position)