I'll share a technic that I use when playing sitting down on a chair. I play right handed so I'll position the bass body on the inside of my left thigh. This will angle the bass up into a more ergonomic position. Now play, its a lot easier on your wrists and helps with your posture. This is the same technic/posture that clasical guitarist use. So its a method thats been developed and used for a while and it works. It will take a short time to get used to. But so did playing sitting down with your bass on your right thigh and your wrists tweaked out at 90 degree angles. Now try this, if your seated in the clasical position stand up. Now notice how the angle and position of the bass is pretty much the same as it was when you were sitting. Now try this again in the sitting position were all used to with the bass body on the right thigh and stand up. You have to adjust your bass as well as your playing.
