Otter wrote:He firmly believes that certain light conditions / or water colouration defines whether a trout will decide your fly is a cheat or the real McCoy and which you have attached to your leader will decide the number of trout you can fool.
Hi Otter, good ranting as always...

I find this very interesting though, because I have just started to wonder along those lines myself. I do have intellectual difficulty with the idea that a fly can work well on one water and not on another.What are we saying here? That there are genetically distinct populations of fish in these different habitats (though there is some element of this, I know) and that they react differently to a given lure / pattern?
It is what I was sniffing around with my experience with the P&O. Now if it was just me I would probably just sigh and accept my limitations as a fisher, but I've spoken to a few who have not rated these spiders on this river. But then I thought, this river is rain fed, peat-stained, up and down very quickly and can go from highly coloured to crystal clear in a day, practically. It is also much overhung with trees.... all this must greatly affect how a given fly 'appears' to the trout in the water. Clearly not a good light for the P&O but rather better for the Greenwell's Spider...
I guess we will never know, but in my more insecure, in-need-of-rational-explanations-moments, I find this last rather more plausible than the genetic difference, on something so basic as prey-drive.
I guess we all aim to have as many flys in our boxes that the trout REALLY want and just maybe the Grayling Witch is such a fly for particular conditions - the big big problem is that without the real history of such a fly and how and when it fishes best from the mouth of its inventor or one of his followers, ascertaining when to use it is a real big challenge and a near impossible task.
That does of course pre-suppose that its inventor employed your methodical approach, rather than just tying stuff on a hook, flinging it in and seeing if anything got stuck on the end of it...

And if it did, then he'd do it again etc.
This is why I keep harping on about the need to supply more info on our experiences in fishing our creations or our experience in fishing the work of our internet buddies creations. If we all put a little effort into this then just maybe we could create a gem of a fly or give true value to an old classic.
Yes, ordinarily I would agree with you, I do try to fish all the flies I tie. But the thing is Otter - I will confess to a rather base motive. I sell some of my flies through a Derbyshire fly fishing shop, and I am thinking of producing a series of Roger Woolley's grayling flies, with information sheet, and floggin' 'em. Perhaps you could provide fishing instructions?
I think I'd fish the Grayling Witch, it has that bit of red on it, so it is in with a shout already.

Not sure about the White Whitch though. Having said that, I have had a lot of success with a very simple palmered pattern, both on grayling and trout. I will tell you about the fly I 'invented' some time, that I subsequently discovered to be about 300 years old!
Aside my habitual ranting on like a dog with a bone, recreating the old flies is great fun in itself, thanks for sharing Andrew
You rant away Otter, you always provide good value for money.

I like to tie these old patterns, and fish them. I always say that doing so allows you to connect with something more than just the fish in the river.
Andrew.