Good idea, John. You supply the skins and I'll test them both in the laboratory and on the water. I think we should test in at least the colors white, ginger, light and dark dun, brown, black, and grizzly.
Shawn, from the years I have been on this forum with you and Louis I have always enjoyed the witty remarks and comments. That was a good one. :-)
I have been several times to JimsFlyCo (Campfire Lodge, West Yellowstone) and to Feather Emporium (Madison, WI.). They have what I have never found in any other fly shop... tons and tons of capes and saddles in a wide variety of colors, and with the "depth" in each hackle color in both capes and or saddles. No two capes or saddles are the same, neither are the birds. So when I want a specific color I need a merchant who has the depth of colors for the hackle. I don't want to call some shop that only has 1 in stock, because chances are when I get it I will regret it. For example, I can remember seeing 10 honey dun capes (pro & bronze). Out of the 10, I would say 4 were what I would call honey dun and the other 6 were not.
It is tough buying sight unseen. So, if I want a specific color I have to go to a fly fishing show that they are attending to see the hackle, or communicate by phone or email to request exactly what I want. In the past I have actually emailed a color tone I wanted to them and got what I wanted with the approval to return if not right, or called and shown them online what I wanted.
For those guys to attend a fly show and cover their expenses there has to be enough fly tyers there to make it worth their while. Plus, they can't take everything to the show. I know for example, if you looked at some Classic Salmon fly feathers you wanted from Dave Roberts (who is an expert on exotic birds and raised them years ago) he would probably allow you to return them with full refund if not meeting your expectations.
By the way, when you fish with Louis have him bring his feathers he got from Dave. I bet you will be impressed.
I will go on record saying, they ain't know other retail fly shop who can match Dave's selection of fly tying feathers in the USA. Along, the same lines, JimsFlyCo.com does have close to 1000 Whiting rooster and hen capes and saddles in stock. That is why those two are the only places I buy hackle from. Just like if I want deer or elk hair I mainly buy that from BRF and CDC from Trout Hunter.