Uphauling with an "easy uphaul" is a no brainer. However, sail size is only one factor with uphauling. While I can uphaul an 11.0 without too much stress in wind under 10 knots, if the wind is over 15, it's a killer.
In my 28 years of windsurfing and racing, twice I had to be rescued because the wind jumped from 10 to 20+ knots as fronts rolled in. Everyone was on big sails and all got flattened. No one could water start or uphaul. This was in the early days of formula and on a longboard some years before that.
Formula 160; iSonic 111; HiFly Move 105; Tiga 263; '85 Mistral Superlight.
Maui Sails TR 11.0; 9.2; 8.4; 7.6; 6.6; Maui Sails Switch 6.0; 5.2; Maui Sails Global 4.5; 4.0.