Well, last night I carefully cut out the remainder of my visor. I cleaned all edges up, filed them to a perfect straight edge. I then took some 320# and sanded the entire exterior as there were several botched areas, paint build-up, drips, etc. The entire thing was beautiful.
As I flipped the helmet over in my hands to give it the final
once-over I lost my grip and it fell from my hands. For some odd reason I didn't dive for it (I think it was because I was thinking about how soft the vinyl is...it'll be ok.). It hit my hardwood floor and I immediately heard what I was afraid of.
It cracked and split...its major. It goes from the right side, back edge of the visor across to the right earpiece, then over the eapiece and straight up towards the top of the dome. From what I have read I am lucky. It's a clean break and can be closed perfectlly. Just a matter of getting some superglue and bondo, which I needed anyways.
Just a minor set-back that I had to share...