This may not help, but you should focus on the shape and position of the sails rather than the positions of the controls. The sails give the power, not the lines. It's an important distinction.
You say a swell height. True swells do not affect sail trim (generally) if these are actually steeper waves that slow the boat then sail trim is different.
For max pointing you need flat sails. To get flat sails one trims all three corners tight, bends the mast
, and makes the forestay tight. Flat means nowhere is the depth
of the sail more than 10% of the chord. As said above the boom is centered. The top main batten straight aft. Assuming the boat was properly designed the headsail foot is generally at the shroud
and the leech at the top spreader tip. For smaller headsails that don't reach the shrouds make the leech match the main: clew at the track and the top of the leech pointing straight aft.
For more power if there are waves ease the sheets
a tiny bit (centimeters). Steer for speed and heel. Pointing comes after speed. The tiller should be "up" a few degrees
That said, typical sail condition, especially on cruising boats, invalidates all this. If you cannot get them flat you need new sails. If they are more than 3 years old you need new sails.