Sandy said:
You always get the most strikes on the end fly,

Steve said:
I haven't found that to be true Sandy.
Do you think perhaps you just feel more of the strikes at the end fly?

......I find that to be true (end fly works best) when I chain
the flies together, with the tippet of the end fly clinch knotted
to the bend of hook in front. I do that because it tangles less
and it's easier to cast. But maybe it ain't work as good as
an old fashioned dropper loop. My experience is that I do
catch flsh on the up-leader fly, else I wouldn't bother to do it
at all. But I do find I catch fewer fish than the end fly.