John,

The beam trays are in the middle of the boat as well ? And because of the symmetry the centre of gravity of these reinforcements will be just halve way between the hulls too, just like that piece of lead. Moreso, all the places where reinforces are most effective are also to be found around the mean beam and daggerboard. Ergo very close to the lead under the mean beam anyway. No mods are made at the extreme ends of the platform, simply because they are not at all effective there.

Wouter