"Larry L" wrote

... wing ..two sparse areas of organza or Zelon, tied spent, with grizzly
hackle wrapped sparsely behind, through and in front of them, clipped top
and bottom

I'd tie in the hackle, leave a bit of space, tie in first bit ( sparse ) of
organza, leave some space, tie in second bit of organza, work thread back to
hackle without disturbing organza, apply dubbing and dub forward in the
'spaces' without disturbing organza, wind hackle a turn in loose turns (
palmered ) behind, between and in front of organza, tie off, finish and
cement ... trim hackle underneath taking care to not cut out the organza ...
the goal is to have the organza's great sparkle where it can impress Mr
Trout

I, personally, would take the fly out like that ( untrimmed on top ) for
better visibility and would only trim the top after on the water and if I
got desperate. As I said, I've had good success during Gray Drake activity
with a full hackled standard Adams and fish will often take, maybe 'prefer,'
spinners of all mayflies while one or both wings are still upright