I've decided that, since I have 0 other actual plan for the whole next week, I'll dedicate the majority of my time to practincing guitar, more specifically working on my biggest hurdle at the moment: Picking precision and speed, and even more importantly, combining the two. If I don't have to worry about playing faster than quarter-notes at 80bpm, I can play with incredible precision, and if I don't have to worry about precision in either hand, I can just about shred (it just sounds worse than a car crash when I try...). The problem occurs when I have to play anything remotely fast that isn't a chord progression with a certain strumming pattern.

For example, I just tried playing the Intro-riff to Welcome To The Jungle, and sure, I could play the first bit, but as soon as I had to switch strings, it just went horribly bad. I started to miss the strings, I started to fret the wrong notes, then the right notes at the wrong time, and the list goes on. I've decided to use those next 10 days focusing on improving my picking technique, speed and precision, to the point where things like Welcome To The Jungle and Sweet Child O' Mine are no longer a challenge for me. My question is: What is the best way to improve my speed and precision at the same time? Are there any great exercises specifically for that, or is it just "practice slowly and gradually increase speed"?