Some of the best players claim that they do some of their best practicing in their minds, (which is the process of visualization. Apply this old age concept to your practice rountine and you can produce amazing results. Look at the transcription and follow along in your mind, it definiteky works wonders in preparing yourself mentally. No matter how many years we've been playing guitar, when we hear a solo that absolutely love we just have to learn it, but sometimes with our excitement the whole experience can get too overwhelming, to the point where we try toi learn evewrything too fast and too sloppy. Of course you know that you should work on your problem areas, whatever they may be, and if you're not sure practice your scales. However, If you have learned the solo entirely, (but very slow), good, thats a good start. The trick with playing it much faster is that you have to listen with your ears, figure out which bars you're really having trouble with, and whether or not its the slides or the hammer ons, once you figure that out, you're on your way.

-Joseph, :).