Hey Ben,

While a flyrod and reel combination have
set weights, the line factor is a variable.
The amount of line through the guides has
an affect on the balance of the outfit. I
believe the idea is to achieve a comfortable
balance at the distances most often fished.
I believe this is a personal subjective type
thing and just a matter of achieving a
comfort factor that suits you. Personally,
I like to keep my rigs as light as I can.
It's what works for me. Warm regards, Jim