Rogue, one example of my KBF is posted with my latest story, about the big rainbow I finally caught in Reid Lake. The recipe is as follows:
Hook: standard 3x long streamer hook (Mustad 9672 or equivalent), size 10 to 2;
Thread: silver grey 3/0 or equivalent;
Tail: 3-4 grizzly marabou feathers, tied in at the bend and extending one hook length back, topped with 15-20 strands of silver Krystal Flash (rainbow KF added to the rainbow variant);
Body: Crystal Tinsel Chenille or something similar like Estaz, etc. - silver, or rainbow with silver braided tinsel wound over the top;
Hackle: nice webby grizzly hackle feather, tied in as a collar and then coned back over the body; and
Eyes: bead-chain for smaller/shallower flies, painted lead dumbbells for heavier flies/deeper water (e.g., Reid Lake which gets 38 feet deep in the middle).
Here's some more pics for ya:
http://www.troutnut.com/topic/8016/KBF-photos-for-Kyle-and-others#37132
They have caught brook, brown, and rainbow trout, largemouth & smallmouth bass, yellow perch, black crappie, and several species of sunfish. Including my largest rainbow, largest perch, and largest bass of both species...
Jonathon
P.S. My condolences gentlemen on your physical issues. I'm about to turn 53 (Sunday after Thanksgiving) and I'm still pretty happy that I can wade for 3-4 hours in current, and drag a kayak on a 2-mile round trip (OK, with wheels, but also about 60-70 pounds including my gear) into Reid Lake and paddle around for 3-4 hours (as well as heaving it up on my car all by myself). I can honestly say that it all hit me at 50, energy lessened and allergies worsened. Catching nice fish, however, is a powerful motivator, especially when you've been doing it since you were 9 (with a fly rod since 21) and when it happens it's essentially psychotherapy. All was good in the world after I boated that 3-pounder...
No matter how big the one you just caught is, there's always a bigger one out there somewhere...