For me it's the technique of "paying attention". I think I've become successful as a fly tyer because I pay attention, not only to how I'm tying the fly - proportions, materials, etc. - but I pay attention to other tyers and try to learn something new that may help me become better with my own tying.
Oh, yea, don't crowd the head!
Kelly.
Tight Lines,
Kelly.
"There will be days when the fishing is better than one's most optimistic forecast, others when it is far worse. Either is a gain over just staying home."
Roderick Haig-Brown, "Fisherman's Spring"