I just purchased a Sunlight N K K Bamboo Fly Rod from an elderly gentleman. I know nothing about the rod at all. This is the first cane rod I ever owned. I paid $50 for it. It is in pretty good shape except one furl is bad. Did I get taken??? Also, how do I fix the furl?? I was thinking about just taking the rod to a real rod builder and having it sort of "renewed" a bit. What do you guys think?? Lastly how do I figure out the weight??