Hi folks…I was unscrewing the screw to adjust the back weight of my tsi3 driver and the screw felt odd like it was almost not catching. When the screw came up, there was the loose washer around it. I tried screwing it down into locked position but the washer just got in the way as if it didn’t belong. I was able to screw it in without the washer, and it still gets the torque wrench to click but as I screw it in, it feels different. How critical is this washer to go with the back screw? Does anyone know exactly where it goes and how it sits? Thanks