What about latex strips?
Latex makes the best abdomen on large stonefly nymphs. I use the normal color, the creamy color, and then color it with marker and finish with multi coat head cement. The only problem I have while using it for large stonefly nymphs is that the abdomen then doesn't match the thorax as far as materials goes, and it doesn't look right.
Lately, I have been using more larva lace, I call it midge tubbing.
I use mine the traditional way (wrapping around the hook), but more often I slide it over the hook's eye and rib with my tying thread. This is very simple and realistic and doesn't form a hard body that a fish would sure tell is not real, then spit it out. I mess with every color and different colors of ribbing.
The hardest part about using it this way is slidding it over the eye on larger sizes. The plus side to using it this way is you use very little material (like a centameter at most), there is no wasted material (I don't precut, I just slide the one end over the eye and cut what I don't need away), and IMO it looks better than wrapping it around the shank.
