Here's an excerpt from a collection of picking exercises I've been crafting lately. This one's based on the Hungarian Minor Scale, which sounds really cool, and takes place on the top three strings using a 3NPS layout. It's easy to memorize, but challenging to play well (for me, anyway), and gives big benefits for both picking and fretting hands. Hope you like it. Let me know if you would like to see it tabbed out -Thanks.