After watching this video on left hand straightness and technique, I am very concerned. I find that when I do as instructed in the video and keep my wrist straight, my fingers lie on the strings at much more of an angle, instead of being parallel to the frets. This greatly reduces the distance I can spread my fingers horizontally, which impairs my ability to do scales, arpeggios, and almost everything. I have small hands, and I'm very worried that it's not possible to have small hands, have good technique, and have a good economy of motion at the same time. Does having good technique necessarily restrict finger range, do I have to have longer fingers, do I have to not use my pinky, or will lots of practice help my predicament? I am very disheartened right now and I could use some advice from people who have experienced something like this before.