In the Mars 2015 issue of Practical Boat Owner, which I just received, David Harding has a full review of the Frances 26. I cannot copy the whole article for you, but let you have his verdict as a teaser.
I think the Frances 26 is a lovely boat, except for the god-awful masthead Bermuda sloop rig. Even with that mast raking 12.0m above the waterline (if the illustration in PBO is correct), there is only room for 31.1sqm sail. With a displacement of 3084kg (6800lbs) that gives a SA/disp. factor of only 14.7 or a SA/weight = 10.1 sqm/metric ton.
A not extreme SA/disp. factor of 20 would call for a SA=42.4sqm,
which gives a SA/weight =13.7 sqm/ton - 36% more muscle pr. ton than the Bm rig.
And remember; this bigger JR sail could be hung on a mast which is around 2m shorter than that Bm mast.
I just mention it...
Arne