Depends on range of windspeeds you want
If you have a fractional rig and want to have a mainsail sized to sail in 5kts of wind, wanting to be able to sail in 25kts+ mandates either a 3rd set of reef points, or sailing with an awful lot of spilling wind from a grossly twisted sail.
On the other hand, folks with sail areas sized to handle Force 6 with only 2 sets of reef points often seem to have trouble getting the boat to even move in less than 10kts.
For my 05H36 I had Doyle make me a 490sq-ft, all-full-batten mainsail of 8.8oz Type 52 Dacron. (305sq-ft jib of same material.)
I sail out of Newburyport between Nantucket and Penobscott Bay, and can move in under 5kts apparent wind; but I really need that 3rd reef for more than 25kts apparent (under 20kts true, usually).
I always reef-down all the way before striking sail, and that allows me to comfortably raise a 3-reefed sail in Force 6 without drama. I just shake out reefs on the way up for less thrilling conditions.
I told Doyle I wanted to be able to sail (not just survive) in anything between 3kts and 30. They delivered a suit of sails that has done that for me for a little over 8500nm. (With my B&R rig I found it necessary to also have an 850sq-ft Nylon asymmetric with sock, and a whisker pole for wing-and-wing.)
I don't go looking for Force 8, but have occasionally been caught in it. Having the ability to reserve my very-twisted-mainsail trimming option until that point with a 3-reefed main and handkerchief of unrolled jib is a nice comfort factor.
PS The photo in my avatar is Persephone sailing flat and doing hull speed 3-reefed in Force 6 out by the Isles of Shoals.
Fair winds,
Al - s/v Persephone