Some guys ya just gotta love and for me Victor Wooten is one of them. A monster player, and a very giving, spiritual guy (the support he gave to this very blog - on the sidebar - are a testament to that!)
Check out this very cool video on how to use a metronome in your practice sessions. This is solid gold right here! A guitar player's tempo or "pocket" is the least spoken of - yet easily most important aspect of one's playing. If your playing lacks conviction then this is likely the place to look.
Take us away Victor!