An update. I purchased North 3DL sails, Racing main with Kevlar, Cruising Genoa with Vectran. Both sails have taffata on both sides.
My only compaint after a full season is the weight of the sails - but I did insist on taffata. I found North sails very responsive (yes they did screw up, not adding draft stripes etc and had to take the sails off the boat and bring them back, but this was their busy season in May). The North Rep came racing with me etc. I found the Milford, CT loft to be very good
I have no regrets with going with North 3DL. the sails are superb and hold their shape very well. I probably have between 100-150 hours on them.