Sounds like lot's of fun....those are my memories of the Serenity....it did not matter if there was wind, I had fun on the Serenity even in very light patchy winds (just little williwaws across the top of the water).
Take care of your Serenity and she will last longer than 10 years.
I still think a 10 m2 rig for a small but solid lady is a little much. Not sure you are going any faster than
you would with a 7.5-8.5 free race sail that has a really good low end. You'd work a whole lot less at
getting the rig out of the water and holding in up.