My son spelled eighths wrong. He spelled it eights so I asked him to change it. I am sorry about the annoying clicking sound. Not to sure what is causing it maybe the zoom in and out feature. Yes just think "Count backwards, go up a number". In my opinion this is much easier than having to contend with eighths inch grooves all the way across the board.
The next video will be Box Making 101. I will show you lots of neat tricks to making the perfect box!