This is very fun. I get tripped up where my "control" line is and often make mistakes because the "control" line is not moving with the direction. For example,

This is very fun. I get tripped up where my "control" line is and often make mistakes because the "control" line is not moving with the direction. For example, a shift to the left leaves my mind assuming the y-control line would move left as well so I could make a subsequent down shift on that column.