Have taken care of that, by use of waterstays to minimize bend in the oversized beams, almost double wall thickness compared to Nacra beams. More info in my FB-group in the signature below.
It is to get an all together bigger, more seaworthy boat, 5.8x4.8m. Larger rig and a lot more RM. Large enough to carry a small outborder when doing longer trips. No need for trapeze for the old man. Should be a little slower at light wind, equal when sailing with the center hull just lifting and capable of higher winds. Rudders on amas and daggerboard on center hull.
Time will tell......