Hey, guys and gals! I'm trying to expose on some new screens and am having a hell of a time. They're 200 yellow mesh, and I've never experimented with yellow mesh before. I'm guessing a need to expose for longer because the problem I'm running in to is most definitely under exposure. It's like the well side of the screen isn't getting exposed at all! I'm running a 500 watt halogen bulb placed 16" over the top of my screens, with the positive being taped in place and a piece of glass placed over it. Screen is coated on both sides. It's the same set up I've been using for almost a year with no problems. Normally I expose for between 8 and 9 minutes on a white mesh, but I bumped it up to 11 minutes because I remember reading somewhere that yellow needed longer. Apparently that's not long enough. On a set up like mine, how long would you expose your screens? 16 minutes? Would that be too long?