Hi pspaint,
I've not tied any with moose mane tails, if that's what you mean by variant. I do tend to use a furnace hackle and grizzle and not just a brown and grizzle because I like the black "body section" the furnance creates.
I think I leave the wings off because if I find a couple grizzle feathers that make nice matched wings with good barring, I end up wanting to use them for hackles. If, however, they are poorly marked and don't match well, I don't want to put them on as wings because they look bad! I have occasionally thought of using mallard breast feather fibres, which I use for wings on other dries. Just don't think I've bothered yet.
It's funny how everyone says that parachute flies are easier to tie. I've never tied one because to me they look so much more difficult! When I want a fly to float in the surface film, I use a light wire soft hackle. I really should learn to tie parachutes though. Would give me something new to fixate on. ha!
- Jeff