Originally Posted by fnnwizard
Oh, no worries Todd, none of what you posts taken as insult. I learn too from just about every post.
Taking a video of your yaw string is an interesting idea. I've got news for you, however. To keep that string straight you can't just do it with your right thumb. Unless you can program your radio to take speed and diameter of turn into account you are not going to have a fully coordinated turn.
I fly uncoupled with very little differential. I use my left thumb a lot. Sequence for a turn is right thumb to establish bank, add rudder, reduce rudder and bank out.
Flying at really high altitude or when you are just flying casually you can throw on the rudder/aileron mix, but I really think it makes you a better pilot to work on the coordination of thumbs. In hand launch this becomes really apparent, especially when turning close to the ground.
Excessive yaw, either in or out, is as bad as excessive bank. Both are lift killers.