I'm sorry, but there is no MIZZEN on a schooner unless she has three or more masts. A two-masted schooner has a foremast and a main mast. The sail on the foremast is called the foresail, then the after mast is the main mast with the mainsail.
Though the replica Schooner America is of a fast design, she is far from as fast as she could be, with her bald headed rig and trailing two propellers, two struts, and shafts. Generally, the gaff schooner is fastest on a broad reach, where square foot of sail to sail, they are hard to beat. They are not especially great windward boats but ease them off a few degrees and they can hold their own over the long run.
However, as beautiful as the rig is under sail (my absolute favourite), it is a very labor intensive rig to handle. Each gaff rigged sail has two halyards and two topping lifts, and there is rarely a halyard winch to be found. That means you would need a block and tackle on the halyards, sometimes up to 5 parts on the throat and 3 on the peak. Given a 50-foot throat haul, that would give you a bit over 250 feet of throat halyard! They were excellent cargo and fishing vessels because the equal length boom and gaff of the foresail could be used in a union purchase to load or offload cargo from the hold amidships. The main could be rigged that way too if there was a hold aft.
The gaff schooner rig allows for a lot of small but useful sails to be added to her compliment of working sails, such as topsails and the oddly named gollywobbler.
View attachment 154858