I need to put the groomets in the vest I‘m very nervous!
Can't blame you... I have to say it wasn't a very pleasant experience !
First I determined the center of the vest and draw a line from collar to the edge, then (unlike
Irongladiator 
) I started with the abdominal plate because I wanted to have the right space betwen this part and the lower edge of the vest. I placed all the pieces and outlined them with a special chalk for tissue.
Then I determined the place for the groomets and started to put them. I had a full kit with a special little klamp with different tips that you are supposed to hit with a hammer to cut the tissue, then to seal the groomets. This was absolute sh**, it didn't cut properly the tissu, and I broke the damn klamp after 15 groomets. I had to slowly and gently hammered the edge of the last ones to make seal them...
The result is that some of the groomets shifted from their position... and look weird (from the inside of the vest so I don't really care

or have bitten on the tissue...
Finally I placed all the armor pieces and marked the spots for the screw from inside the vest, through the groomets holes.
Turn out well, but if you look closely, their position are not very symetrical from the inside !
Fortunatly no impact on the way the placement looks from the outside, and that's the main thing !
Not a horror story, but close enough
