Guy at the lumber yard in Bakersfield showed me how he checks a board for twist with just his eyes
I was picking through a stack of 2x6s last month and this older fella next to me asked what I was building. Told him some shelving for a client's garage and he just nodded and said, watch this. He held a board up at eye level, closed one eye, and looked down the long edge like he was sighting a rifle. Took him maybe 10 seconds per board and he set aside a pile of keepers and a pile of junk. I asked him where he picked that up and he said a cabinet guy in Fresno taught him back in the 80s. I've been eyeballing boards by laying them flat on the rack my whole career and this was way faster. Any of you sight down the edge like that or do you have a different trick for catching twist before you load up?