I LIKE TO USE A COMBINATION OF BOTH SOAPSTONE & A CARBIDE TIPPED SCRIBE. I USE THE SOAPSTONE TO MAKE TWO OR MORE DISTANCE LOCATIONS & THEN USE MY SCRIBE TO CONNECT THESE POINTS. THIS IS VERY ACCURATE AND FAST. THE SOAPSTONE MAKES IT EASY TO SEE YOUR LOCATION MARKS AND THEN USE A STRAIGHTEDGE...