Ok so I have been busy at work but the last few days I have been putting in some quality hours on my helmet. I have the dome and visor sections attached to the inner surface. Just a side note, remember to always use a REALLY sharp knife/razor blade to cut out this matt board. It is really hard to cut even if your blade is a little dull.
Anyway, I had some serious trouble with the dome. I cut it out really closely to the template, not perfect, and then tried to assemble the three sections. Fail.
It was not nearly domed enough. The trick with this part is to wet the matt board really well and bend it farther than you would think necessary. More than 45 degrees. the dome is somewhat sharp angled arch and not a 60 degree dome.

I had to remember to put in the arch supports cut out from Alan's template, this part helped. I found the easiest way to do this was to glue the bottom sections down and let them dry all to the curved base of the dome.
Next I wet down and pressed firm the "fingers" of the dome to get them to go together. Most of them lined up perfectly but a few rebelled against me, so I delt with them like the French and cut the tips of them off

Then a dab of hot glue at the point for some instant securing and later I added wood glue. Every gluing phase I let the helmet sit for about 8 hours or so until it was very solid. I was afraid of going at it too early and having it come apart on me.
At this stage I was starting to see a helmet come together, but saw some serious errors. Hopefully I can make these go away with the wall filler and sanding (x100). As always if anyone has any tips tricks or criticisms let me know

Thanks

Samkrow