I agree with Martin on kilt length with a small exception. Whereas I never plan to attend any formal affairs in kilt or otherwise, or attend functions where I will accept my degree of "correctness of dress" is up for judgement, I feel free to chose to wear that in which I feel comfortable. It appears though my preference in kilt length was also shared by the Highland Chieftain in this painting found on this link: http://www.albanach.org/drawstring.htm.
Gordon
The hippy in a kilt.