That's true. I grinded down the "trenches on the inside for the modified posts to sit, but I'm deathly afraid of going too far with it. One side laid down pretty flush, but the other one may need just a bit more work (realized it was still slightly too high after trying to put the visor in)
I think the other issue is that my visor is not pre-formed. It's almost paper thin, very pliable, etc. I have no issues getting it into the helmet, though, I think the vertical portion, since it's not curved, there is more tension. The plastic itself does not shape very well. I had it sitting in boiling water for over 10 minutes just shot right back into it's original flat shape. I may need to find an actual-pre-formed welder's face shield...
