Any help with synchronization?
One problem is that you should not strive to get the hands to be coordinated with one another. Actually, you need the opposite: maximum independence. Further, since I am right-handed, I have a general rule for myself that my left hand should be able to do at least 115% in terms of speed of what the right hand can do. The rest is in your head, your inner ear, etc. You have to able to imagine the sound AND the movements while not playing physically. As long as you can't do that a tempo, your attempts at success will mostly depend on chance.P.S.: Forcing the speed will not help you; what you need is deliberate SLOW practice of high-quality movement.Paul