I'm probably in the minority, but one coat of wax in the Spring and one in the Fall....I only do the hull in the Fall, not the cockpit or deck....I find here in the Northeast, one coat easily lasts the season. If it looked to me like I was losing beading during the season I would put two on.
I also use a Boat Wash the doesn't strip wax during the season. I see so many folks using the strongest boat soap they can get their hands on and all they are doing is stripping away all that hard work!
Your boat looks great by the way!!