Right turn of discussion.
You don't care of balance
....... unless you do.
Couple years ago I suddenly bumped into health problem in my right shoulder called "frozen shoulder". Was very limited in a move range, and almost any move of right hand was real painful. The choice was to stop casting (i.e., fishing), or find at least some way to keep fishing.
With frozen shoulder, it was absolutely clear what balance for: moving rod using only palm (with no shoulder involved) did not produce pain. I switched to ultralight AND to micro jigs(or even float on a 2lb line), trying to go after anything that I could catch using this technique.
Now, my frozen shoulder healed up, but love to ultralight remains
The point is: yes! You don't care of balance
. Unless you do
BTW, i'd like to remind this older top-of-the-line XML rods from Cabelas with added weights in a handle intended to attain this mythical "balance". Unfortunately, rods where discontinued couple years ago, and current model XML have very little in common with older model.