Wait, you were running PVA at 55 degrees and it was still grabbing at all? I thought most wood glues get chalky and useless way before that, like under 60 they stop soaking into the wood right. The real problem might not be the glue itself but the wood being cold, since cold stock sucks the heat right out of the glue line and you get that fake dry skin that looks set but never cures. A heater under the bench helps the air but the boards stay cold for hours, so I started bringing my stock inside the night before and that did way more for me than warming the room. Maybe your Duluth guy was onto the bench temp, but I bet the wood temp is what was really biting you.