Was a little bit sad that the plans for some details like centreboards and rudders were not included. But that will not stop me from making them myself.
I'm not Phill, so I can't speak for him, however in the past it was mentioned that making dependable rudder- and daggerboards is above the skill of an average homebuilder. These items are under significant forces and the risk of breakage is quite large unless they are being made by a truly knowledgable person. Especially with the new high aspect board and when you want them to be down to an acceptable weight.
It is strongly adviced that homebuilders buy these parts. It is my guess that that is the reason why there are no building specs for these parts included in the plans. Even the professional F16 builders themselfs are sourcing these from experienced suppliers.
However, if you contact Phill determined to build these yourself anyway then I'm sure you'll get the details to do so.
I'm not sure what happened to the building specs for the mast. My set of plans (2004) didn't include those yet, because some optimation was still being done there. However, contacting Phill will get you the latest details on such aspects.
You have bought the plans and you will be fully supported all the way to completion of your boat. This also includes gettting advice and help on how to best source parts and implement certain design aspects.
I guess I'm trying to say here that set of plans on paper are only part of a larger deal. At this time several people are working simultaniously to develop the design further and I have no doubt that upon request homebuilders will be benefitted with the latest results. It is just too much work to type everything up in the plans.
Wouter