Day-master strength is a ratio; when what feeds you and what drains you are roughly matched and the season doesn't tilt either way, that's balanced. The tradition does count it good — but be precise about what's good: no structural lean. Extreme charts have a clear direction (strong wants an outlet, weak wants topping up); balanced doesn't, so the chart won't push you and every direction is walkable.
That produces a consequence most people don't expect: balanced people separate from the field by choice. Strong charts have thrust built in, weak ones borrow instinctively; balanced ones are unremarkable at both — so with the same chart, one person who commits to a single line goes very far and another who touches everything ends up level everywhere.
Where you'll recognise it: not extreme, adaptable, able to take pressure without cracking, and rarely gripped by a 'must'. Running well, you're the steadiest one: you last, you adjust, you're the reference when others lose their footing. Stuck, you're flat — no preference, no must, days without shape. The tradition's advice for balanced is to move with the cycles: since the chart won't push you, look at where the luck pillars and the year are going and go that way. For you, choosing a direction matters more than it does for anyone.