If Free Again was a kingly display of rhythm, almost using his guitar as a remote control to your body that makes your head bob, foot tap, and arms wail, then I've Grown So Ugly is a godly display of syncopation. Here, Vestapol tuning actually works quite well (whether it's what he actually used is difficult to discern); with the open strings available as root notes and other usable tones, it frees your right hand to pluck syncopation notes as you please; as well, it simplifies your left-hand fretting quite a bit.
For the most part, Williams stays within the upper range of the guitar on this one, novelly using the 4th and 3rd strings as the bass notes, and only straying when he hits the turnaround. With his chicken pickin'-like style, the intricacies are mainly in the right hand. Staying loose throughout the tune, steadily it's almost achievable to get his easy-going, care-free feel right. On the left hand, he elects to play only the funkiest notes, playing fat bends and a mixture of tasteful pentatonic tones for maximal harmonic effect.