For something quite different, tie up #1 or 1/0's as winter steelhead flys. In lower water conditions (winter dry line work) they sink like a rock and the hook up rate is very very good.

As sensitive as spey rods may be, when you get into 15 foot or larger 9-11 weight lines, winter takes are amazingly soft. Fish frequently will pick up the fly and float down stream with it in their mouth. Frequently, you won't feel the tightening up on the line. The circle hook tends to slide into the corner of the fishes mouth .... nothing ... fish on!