The fly goes along for the ride. When the fly
is too heavy for the line, the line sags and the cast doesn't make it.
The size of the fly you want to use determines the size of the line
that will properly cast it.
Does that mean you need a different
rod for every size fly you use? No. There are differences of
opinion of course, but if you want a rod primarily for fishing
streams and ponds, a 5-weight rod and line will do. If you are
a bit more sophisticated and are going to fish gin-clear spring
creeks with tiny, dry flies, a 3-weight rod and line would produce
a more delicate presentation.
Fishing for salt water fish off of ocean
beaches requires a much larger fly, longer casts and a rod that
will handle a minimum of 7- or 8-weight lines.
But this is only part of the story. Each
rod manufacturer has their own idea of what makes a good
fly rod. If you cast a dozen or more fly rods, each the same
'weight' and each with identical fly lines, you will make a huge
discovery. Next time, we will talk about the action of fly
rods — or, "Are all fly rods of the same weight the same?"
Stop by the Chat Room and meet some fellow anglers. It is a
nice bunch of people - always willing to help with fly fishing problems! Or just
share your fishing adventures. Fair skys and tight lines, ~ DB
Have a question? Email me!