Long terms members will be aware that I have a muscle condition that means that on some days I don't have the strength to pick up a rod let alone use it. So for me it's vital I don't find a rod tiring to use, and I'm therefore more acutely aware of balance than others.
In my rod building days I tried a rod that I made to balance at the reel seat as commonly recommended. I actually found this more tiring to use. This was because the rod acted a bit like a see-saw.
So I'd suggest that you use a rod that balances a little bit higher than the reel seat. If it's OK for me it's likely to OK for the able-bodied.
Within reason, I've found that balance is more important than weight. I've found, as most have said, a pivot point just above the reel, is best, I've found around 2 to 3inches suits me. My old 13ft milbro enterprise, was very tip heavy, and I had to put about 6 or 7oz of lead in the butt to get the balance that suited me. This was back in the days when you could be stood up trotting for the whole of a 5-6 hour river match, even with the extra weight, the rod handled, and felt much better. The only match fishing equivalent I can think of today, except using a pole, is using a pellet waggler, and most of those rods are around 11ft.
Angling is more than just catching fish, if it wasn't it would just be called 'catching'......... John