Instead of speculating on warranty coverage, it's best to just go ask the companies directly.
R.L Winston Rod Company
500 South Main Street, P.O. Box 411
Twin Bridges, Montana 59754
Winston Rods - The Finest Fly Fishing Rods in the World
8500 Northeast Day Road
Bainbridge Island, WA 98110
The Scott Fly Rod Co.
2355 Air Park Way
Montrose, CO 81401
Scott High Performance Fly Rods, Telluride Colorado