Thread: Matching Fly Size and Line Size

Thanks, Pete, that is the sort of guideline I was looking for. Is fly size determined solely by the hook size?

Not really. You can tie a pretty long worm-type fly on a size 4 hook and a much shorter pogy imitation on a size 1/0.
Proportion is the key. Also, the hook's "bite" increases with its size, and that's good when you are targeting big fish. Therefore a four-inch pogy intended for stripers/redfish/cobia would be better tied on a size 1/0 or 2/0 hook than a size 2. 'Course, it's easier to set a size 2 than a size 2/0. Confused yet?
There are other considerations that would take a case of beer and all night to discuss properly! Use "proportion" in general and "small enough" to keep from sinking your sulphur dries! And learn it from experience!
Pete