After my first week behind the vise I have three recurring issues that are top on my list of learning curves so far. First, I crowd the eye on 90% of all my flies. Any suggestions on how to stop this? Second, when I wrap lead under my nymph bodies I have an issue with material slipping off the front of the lead wraps helping to crowd my eye. Any suggestions? Third, most of my nymphs that involve dubbing look anorexic. I guess I need more dubbing material on the thread. Any suggestions? Also, whats the rule of thumb when tying with proportions. By this I mean what percentage is the tail, thorax, abdomen, etc.?