Oh, and excellent lesson if I haven't already said so. I've been working on it occasionally for a few weeks and since I've only been playing for 18 months, I didn't think I would get close to being able to double stop tremolo this soon. Thanks man!
I found this video. It helps to know that double stop tremolo is really hard. I don’t feel so discouraged. I have changed some of the double stops in the exercise to accommodate my small hands and short fingers. Finger really difficult double stops I. The left hand doesn’t help the right hand relax.
OMG, I'm so close!! Soooooo freakin' close!!! In fact, my hand and brain already know how but my ego won't let go and allow my hand and brain to get their groove on!! It's so crazy! I can tremolo naturally and organically as I'm playing and as long as I don't plan it or try to practice it, I can do it!! WTF. It's gotta mean I'm getting close. A mandolin just doesn't sound like a mandolin without double stop tremolo.