We just got back from another trip to Colonial Williamsburg and as usual, it has inspired us. I'm going to build some clay brick walkways using a running bond pattern and a patio using a herringbone. To be authentic, I should have wavy imperfect lines. My ICPI training and anal retentive ways are telling me to have perfectly straight lines. I know it would look truer to the period, but I am having a tough time with this decision. Thanks for your replies.