We had two championships. First really light winds less than 6 knots and we were second overall.
second championship 3 bullets in 12 knots of breeze.
really happy performance. Really incredible in downwind
I have seen a lot of J105 are sailing with a genoa about 40 m2.
so the configuration I would like to try I think has to be an option to consider.
not sure about the mast settings and the double backstay if it will work