Greetings from Australia.
I have had the Belhaven plans for some time without commencing my build. Now I see the CS 20 Mk 3 and see many advantages with water ballast and the raised deck design. I have read all the comments about the Belhaven cabin (eg. Scott's descriptions) and it is what I want, and assume the CS 20 cabin is much smaller as it's not designed as a cruiser.
If comfort is more important than speed to me, should I just build the Belhaven as is, as I am sure the design works extremely well? Or, with the more advanced features of the CS Mk3 design, should I build one