I have some Orvis #28GT hooks that are labeled as Swimming Larva hooks and some Mustad #80150BR labeled as Swimming Nymph hooks. However I’m at a loss to find specific patterns that call for these novelty designs. I can’t imagine that unique hook shapes would be made when there is no reasonable demand for them. I’m confused. 
There is nothing truly straight in nature so the swimming nymph hooks reflects that.
Here’s a very successful pattern I’ve tied.
Here’s a Hex Dun tied on a #6 swimming nymph hook.
a pattern from Oscar Felieu
Better tie a few more of those Hex Duns. I plan on giving them a wookout in a about 3 weeks
Brad
Warren has 3 or 4 maybe he’ll share. But I’ll tie a couple more.
You can tie just about any mayfly nymph – eg, plain old PT – on these hooks. However, it’s probably most useful in larger sizes for swimming or burrowing type mayfly nymphs such as Isos, Brown Drakes and the various other Drakes. I certainly wouldn’t bother with this hook style for small nymphs such as #18 Baetis.
That could be why Daiichi only goes down to 16.
You can use the smaller sizes to tie free swimming caddis larvae.
Just a note here.
Ray seldom responds to his posts so this will be interesting! I think he just looks for way to stir the pot and make us offer our knowledge.
Sneaky Ray but it does work! In no time at all you have found all kind of uses for the “Swimming Nymph” hook!!:lol:
Hello Jack; I do respond when needed. In this case I have yet to see these special hooks popular enough to justify a SBS or video from anyone. My conclusion must be that these hooks are a novelties of the moment. Thank all you guys. 
you’re right Ray. These hooks, just like the Stone Fly hook by Saber just change the shape of the fly’s we tie. Something different to get us to spend our money! I will say that one day on the Elk River my bent bead head soft hackle was the only fly to catch anything!
There is at least one SbS for a fly tied on one of these hooks. I know there is, I did one as a FOTW some time back! Though I agree they are a bit of an oddity.
Cheers,
A.