I have the pattern at home, I'll try and remember to check the number of the pattern.
When I upsized mine (only had to go from a 42" to a 44") was add an inch on the seam on side under my arm and an inch on the body in the front directly below your chin down to your belly button. There is no seam here per se, you use the patern piece and put them back to back as if there would be a seam but cut it from 1 piece of materal. Also added 1 inch to each side of the back. This ended up being more then the 2 inches I needed but because I did the vest double thick and most of them were on seams it ends up with the vest just barely fitting. I will be redoing this now that I have a little more experience sewing.
Depending on the price of the satin, if you can find a good ammount for cheaper then basically the cheapest other material buy the satin to experiment with. Who knows maybe the first try will be all you need.
I usually look for the "cheap ass" material that is near the end of the bolt. I try and match weight of fabric and contents (100% cotton or 50/50) of the final material i want to use. Get enough of the cheap ass stuff and work it out on that. Once I know what I'm doing I use the more expensive real stuff.
Last night when I was in wal-mart the woman in line at the cutting counter in front of me had a bolt of grey satin that was 1.50 a yard I was about wetting my pants looking at it, I couldn't wait to ask the attendant to cut me 7-10 yards of the stuff when the woman ahead of me asked for "the rest of the bolt". Sadly that was all they had.
opinions?.....comments??......bobafettish , dont it look better than at midohiocon?......i will also be re-painting all the armor and the current helmet will recieve massive mods......( i'll use this one untill i get my msh2).....new jumpsuit in the works as well....i have also gotten a fab. new cod and movie accurate knees....its lookin 100% better..