Had a few hours on my local river this afternoon. Started off fishing upstream nymphs and had 4 fish in a couple of hours for my trouble: three small trout and a good grayling. I then swapped over to the duo and took about 15 fish in the next 90 mins or so. Weather conditions were pretty much the same all day. The nymph on the duo was the same fly I used on the point of my upstream set-up. I had one grayling on the dry and all the rest came to the nymph. I find this difference in catch rate between upstream nymphing and duo quite amazing. I was fishing the same water and have already mentioned that the same fly was used in both methods. With both methods I was regularly catching bottom, so I know I was fishing at a similar depth in both cases. Both methods are "drag-free", in fact, with the wind today I probably had more drag with the Duo method as the wind whipped my fly line around a lot. I can only put the difference down to bite detection, with the sensitivity of the Duo dry fly a much better indicator than looking for the end of fly line to zip forward.

Would be interested if anyone else has had similar findings in the catch rate between the two methods.

Daran

On a recent trip to the Don in Sheffield, PaulG caught well into double figures using this method 'Duo/Trio' and caught loads more than me straightlining... Maybe the constant depth that does the trick?... inc bite detection?.... erm, similar to ... dare I mention.... a bung... ahhhh i said it

The duo is a much more effective technique especially if used in faster or rougher water where detecting bites on a single upstream nymph is difficult. OP you would have had just as many takes on the single nymph but would have been missing them. When using a single nymph try pulling the nymph through the water a little faster than the current speed to detect bites a little more easily. One inhibiting factor of the duo is the fact if you try to induce a take on the nymph with a lift in low water you can spook the fish with drag on the dry.

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ive often wondered when fishing the duo method whether the constant vertical rise and fall of the parachute fly on the surface has a knockon effect of causing small jiggy movements to the suspended nymph..might appear more appealing????

It's certainly food for thought Neil.
S.

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"A glint of sun has warmed the air,The flies will soon hatch out, To lure and tempt from their deep lair, The bonnie speckled trout." SKB tackle supporter. I love Furled Leaders.

was just something i was thinking about while out yesterday..river was still pretty high but clear with a good 3-4 inch ripple in most of the pool heads. caused quite an amount of movement in th klinkhammer.i'd imagine this is transmitted to movement in the hanging nymph..

do you use super bouyant flies for fishing the duo. When I try it the nymph pulls the dry under. To get by this i tied some very small grhe which do work but i lose so many fish due to the small size its not worth the effort...... and stress. The fish do get hooked but 7 / 10 times i lose them in the fight, unless its a dace. In light of this problem i resort to using a bung but only because im missing something with regard to floatability. Can anyone shed any light on the problem.
as an addition heres a pic of the only flies whice dont sink my klinks.



a bit ratty i know

Rob

They look OK to me Rob, they'll catch fish.
On the odd occasions I duo, I use a large klinkhammer with a very bushy hackle, with plenty of Loon aquel on it.
It works for me, but as you say keep the nymphs small.
S..

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"A glint of sun has warmed the air,The flies will soon hatch out, To lure and tempt from their deep lair, The bonnie speckled trout." SKB tackle supporter. I love Furled Leaders.

Hi Mr Trout.
When you say large a take it your refering to the diameter of the hackle spread and not the hook. Which hooks would you recommend in what sizes? To be honest im lazy when it comes to dry flies due to the work involved, so usually buy my klinks. The ones i have tied arn't on klink hooks so are really para's, which riding higher should be more bouyant (i think). Maybe I just need to use a lager hackle?

Rob

I use something like a size 14 klink hook which is large for a 14, if that makes sense, but an ordinary para hook should suffice.
I use a fairly wide hackle and give it several good turns around the post to bush it out.
I also use a good amount of wing post, far more then I would on a standard para fly, maybe twice the amount and grease it up well.
Hope that helps, if you get stuck your best bet would be to buy a ready made klinkhammer at a shop, pick a good bushy one, and if you can't find one contact me and I'll send you one to try.
They aren't pretty, but they work.
Steven.

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"A glint of sun has warmed the air,The flies will soon hatch out, To lure and tempt from their deep lair, The bonnie speckled trout." SKB tackle supporter. I love Furled Leaders.