Well, the two Minisails shared water at the Yachts and Yachting forum open meeting on 13th October.
I used the GRP Monaco with the new blue stripy Morgan sail, and my son used the wooden Sprite with the year old R&J sail for the 1st 3 races.
With light and shifty winds, and a difference in helming experience it was difficult to tell which set up was better. For the 4th race, I used the Sprite, and certainly found the hull more to my liking - higher volume meant less shipped water on the roll tacks and a higher angle of heel to windward on the runs without too much of the deck under water. The R&J sail appeared to have a little more power, but a tendancy for the leech to hook more.
The Sprite will be going under cover this week, but the plan is to carry on testing the 2 sails on the Monaco over the Autumn, to provide feedback owners might find useful.
I hope more photos will be published on Yachts and Yachting from the weekend, as there were camera people out in safety boats. Meanwhile, here is one of the 2 sails together on the shore.