I've been experimenting with various nymph patterns for larger mayfly hatches such as Brown Drakes and Isos. These nymphs are different than the usual mayfly nymphs I tie in that they are quite a bit larger and they also have a lot movement. I'm wondering what you all recommend in terms of pattern types. It seems like I've seen several alternatives:
-- Nymph tied on long shank hook
-- Nymph tied on short hook with extended furled body
-- Nymph tied on short hook with extended marabou body
-- Nymph tied on short hook with articulated body.

Also with articulated nymphs, I'm interested in thoughts on how the rear portion should be attached to the front. I've tried heavier mono and braided fly backing looped through the rear hook eye. I've also tried lashing mono and fly backing to the rear hook. These all seem to have slightly different action.