I have been playing bass for a few years but I have been struggling with the position of one finger per fret position. Does my writst need to be perfectly straight(parallel w/ knuckles) or can it bend slightly as long as you only use your finger tips and forearm. I find it nearly impossible to play an A or G scale in this positon with my whole arm perfectly striaght. Yet sometimes when I play otherwise i do get some pain in my wrist and then I am forced to stop. This is really holding me back right now and am hoping to save going to more lessons right now. Can you guys please help me out with this as in depth as possible. Thanks so much.