I saw today an ad for a 26M for sale in Sweeden
with the following as a feature
"Extrakeel 200 kg led mounted on the centerboard with el.winch for up or down. Gives much better
upwind performance and used together with ballastwater makes the boat very stiff."
There is a picture also of the lead bulb on the bottom of the dagger board and the motor for raising it.
Apart from the difficulty of getting it on the trailer, is the Mac built strong enough to take the extra load on the board and casing ??
I'm not thinking of changing boat or adding lead - just musing on the net.