Larry L wrote:
snip
I have no doubt that those with greater skills than myself can "do it all"
with exactly the same leader ... I can't. And like the search for the
perfect "one rod for all fishing" I've given up on "one leader for all
fishing" and find loop to loop to be the best way to change to meet changing
conditions, mainly because I can spent the knot tying time indoors with no
wind, and good light instead of rebuilding on stream, with cold hands and
that rushed feeling feeding trout always instill in me. ...

I don't think anyone, no matter how "skilled", can do it all
with exactly the same leader.

The segment of leader that will almost always last a whole season
for me is 7.5' of factory tapered 3X nail knotted to the fly line.
But that segment can be used to construct many dozens of different
leaders to suit the situation. Then too, I'll use all 7.5' on a
5wt, but I'll cut off the butt end of the leader down to match the
diameter of a 3wt fly line.

You can make an almost infinite number of perfectly serviceable
leaders starting with a 7.5' factory tapered 3X, and that segment
usually lasts me a whole season.

--
Ken Fortenberry