Man, sometimes there are those licks that just won't take!!! I will say that the opening lick is a bit tricky in the phrasing ... I definitely had some trouble initially.
Something to try ... maybe you've already done this, but break the lick down even further. Start with the opening bends. Then tackle the next 5 notes, then the next 4, then the last set of notes. Try isolating each chunk of notes, then repeating at a slower speed for several minutes each.
Once you've spent a good amount of time with each chunk within the lick, then spend some time stringing them all together ... again, at a slow speed. Repetition is the key, so dig in and play it over and over.
Hope this is something that can help!
Mike
Keep rockin!
Mike Olekshy
GT Guitar Coach
