Great tie Alan! I almost always grab up-eyes for my dries and emergers, and down eyes for nymphs, streamers, wets, scuds, and the likes. I own but rarely use straight eyed hooks. Even for the smaller than size 18 dries and emergers, I use up eyes (old mustad 94842 hooks).

Regarding the knot behind the hook-eye issue: do you (Alan or anyone for that matter) use that knot often, as opposed to the Davy knot, improved cinch, or some other knot? Also, when using the knot (I think it is called turle knot?), do you find it easier to leave space on an up-eyed hook versus a downed-eye hook when tying the fly? Inquiring minds want to know

Tight wraps,
-ZugbugPete