I also the nail knot for my line to backing connections. The knot slides through the guides without a hitch. When I am fishing for salmon or steelhead I will tie two or three nail knots in a row, simply leave a long tag end then tie the second nail knot about a half inch farther up your backing, and again if you want three. I have never had the first knot fail but if it did then the second knot would take up the fight.
Larry ---sagefisher---
Organizations and clubs I belong to:
Fly Fishers International Life Member
FFI 1000 Stewards member
FFI Presidents Club
FFI Fly Tying Group Life Member
Washington State Council FFI
V.P. Membership
Alpine Fly Fishers Club
President & Newsletter Editor--The Dead Drift
North Idaho Fly Casters club