Re: How do you know you have the right line for your rod?
To measure line weight, just coil up the first 30 feet and put it on any grain scale. I have a digital that works fine. Then go to the AFTM chart to see where the line lies.
If the line is a sink tip you can start cutting off the tip until it matches the weight line you need.
Many sink tips are sold with only the weight of the sink tip provided. No mention is made of the AFTM weight. How the hell can a 650gr, 20ft sink tip be rated for a 10 weight rod?
To get proper line/rod balance don't forget to add the split shot and weighted fly to the line weight.