Yo, that makes a lot of sense. I've always done one pane at a time so I don't brush over drying paint, but by the time you finish all your right hand cuts, it's probably dry enough that it doesn't matter. Looks like you got some really clean lines, I'd love to see a regular speed video on your process. To me, crushing French panes efficiently and accurately without tape is the hallmark of a master painter. Cheers from CA brother