Surely, not a marketing ploy? No!
Right...
Got, it, we can't trust the manufacturers to put the correct number on the rod. But didn't you say earlier....? Oh...
So do you want that nonsense on your single hand trout rod?
Not really, as if it says simply 5wt., that is the line you should use, of one profile or another to suit your casting tastes, or special requirement.
You surely don’t want a labelling system that implies your rod is a 3, 4, 5, and 6wt. all in one - when it is simply a 5wt.
The Burkheimer example I gave in the previous post was for a two handed trout spey rod. It’s double handed 4,5,6wt designation, if converted to the single hand line wt. of the trout world, would equate (for me) as 6,7,8wt.
So, that Burkheimer two handed rod (for me), would cast a regular 6wt. single hand trout line, overhead - without overloading (not that I would ever do that, I use largely Scandi lines of around 265gn. for a two handed rating 3wt.).
Just an example of why single hand trout rods are best with just the usual simple 5wt. rating - as a rod so rated must, and will, cast every 5wt. trout line.
So, what were you saying.... ..that you don’t really understand anything, in a useable sense perhaps?
You really do need to invest some time and money, and go fishing much more, and perhaps even discover rods from Burkheimer, Meiser, Thomas &Thomas, as well as the likes of Hardy, and the myriad of other mass production rods too. Try lots of lines on all these rods, find what you really like, the ones that really boogy for you.
Probably better than wasting you time ‘understanding’ your growth pains, or lack of, perhaps.
From the comment on this subject here, it is clear to see those people you are arguing the toss with, that really already understand casting and must have lots of skill, and decades of experience to comment in the way they do.
So far, it seems we could write what you actually understand in a practical useful sense, on the back of a postage stamp...
