Hi Clark,
No problem

You made a valid point. My table may actually appear to be unfinished so I was just pointing out that I had sealed it. On the first plywood table, I had some leftover from replacing the bulkheads and like the bulkheads, I coated that table in West System Epoxy after staining it.
As for the material of the old stock table. I think that it's what they were using for such things back when these boats were designed. I consider the C 22 to be a cross between a sail boat and the basic 60's 70's tent camper in many respects. ...including a space issue...... but it really is a finely designed series of compromises.
Phil,
I can't help you with the StarBoard material. I'd assume it's a synthetic?. Aha:
http://www.kingstarboard.com/Products/Starboard.aspx
So, it depends upon what you want to use.
When I replaced my bulkheads, I tried to investigate marine grade plywood and I found it expensive. I also found that the teak ply used in the cabin isn't marine grade anyway. It just needs protection from the leaks that can happen with these boats.
When we are on the water, we will either pull over to a dock to eat or we often eat in the cockpit. So, I think that I actually used the table about three times as a table last season. The rest of the time, it was down for space/storage. So, I actually kind of forgot the details of how I built it.
If one is using a table, one can consider doing a few things. Such as recesses for cups or a lip around the edge to prevent less spills.
Another point is that you probably want to consider something in a way to aid the attachment brackets. Sometimes, they will let loose when a person puts some weight on a corner. This is a flaw in the table design and CD sells a fancy fix for this. It's not quite as dangerous as the pop-top falling on a hand but it's not something that you want happening.