Ive been thinking about my fly selection lately and have begun to tie some different types of emergers and nymphs. Some of the patterns ive looked at call for antron yarn for an air bubble which i dont have at the moment. Anyone have any substitutes or patterns that i can tie otherwise? Also im planning on fishig eastern connecticut for trout this spring and have been tying some suggested nymphs. However ive been thinking of trying some new patterns specifically beadheads? Any suggestions?