Er, but I can't play that...

If you're having trouble playing through some tab, the chances are you're trying to play it too fast. Most times if you slow down the problem goes away. Then you have to gradually increase the pace until you can play it at a speed you're comfortable with.

Everyone gives that piece of advice, but I find it much harder to take and to stick to than you would think. One problem I often find is that I can play most parts of a tune or break up to a certain speed, but there might be a few passages that I can't quite make. It's more fun to play the piece up to speed, so sometimes it will take a long while before I realize that I'm fudging a certain section every time.

Sometimes, in order to play the problem section properly, I have to slow it down so much that it becomes hard even to keep track of the timing. Mostly I find that by isolating and playing the difficult passage over and over very slowly, I can eventually get the whole tune up to speed.