Hey Dan,
I think the other thread above this has way more action and answers but all is okay so far. There have been a few slight issues but it is avoidable. Let me say this - find your shop and emulsion sweet spot when it comes to humidity and temp and stay there year round. Also with screens exposed and taped. It's easier for us since New Orleans is a fish bowl and we don't have these dramatic swings in weather. It's hot and humid all year most of the time. When it drops temp we have a day or so notice and can think / plan ahead for it. You guys with 4 seasons, get busy documenting.