ya, i decided not to go with the vacuum formed fangs because it is not curved to the hood as is, and more importantly, it wouldnt be as durable.

as for making the negative mold, u might want to check this site out if u dont have the silicon yet.
https://www.polytek.com/cgi-bin/webc.cgi/st_main.html

what are your thoughts on just plane old plaster of paris? i was considering using just this for economic reasons, and since the plug is so simple, it shouldnt be a problem demolding.

mark-