I bought the Yngwie Volcano course, and I must say it has really changed how I view picking technique, and has improved my speed and accuracy a lot.
It's not easy to change the way you pick but with some discipline and practice results came very fast... Now I totally understand why I've always had problems with speedy licks in certain situations, especially jumping from higher to lower strings.
I'd recommend this to anyone, at least check out his free YT videos, Cracking The Code. Just watching them will tell you what this technique is all about.
I'm working on YJM Trilogy Suite song now, and I'm almost there with speed and accuracy, which I want close to be able to do a few years ago when trying...