Good to hear from a fellow Atalia Owner. On your way to "the Rock", did you stop in at St-Pierre or Miquelon? It's always been on my "to do" list. I hear sailing in Newfounland is quite spectacular.
How does she handle on the Ocean? (canvas work, steering, engine...) We sail out of Kingston, Ont, so she does not see the same wave action.
I have not heard of anyone putting in a composting toilet in a sailboat before, but I have seen them in cottages. Interesting solution. I assume it's because US regs require a certain holding capacity the Attalia does not have? I'm assuming you have the standard holding tank.
I find the 13hp Yanmar adequate for Lake Ontario, not sure about Ocean...
Looking forward to some exchanges. Let me know how the propane refit goes.