A thought about perio probing

It should be beneficial to scan the gingival margin before commencing perio probing looking for classical signs of gingivitis: redness, loss of knife edge contour and height of gingiva. This may hone in on places of interest. Burnished calculus may not be immediately obvious to the tip of your probe so a more perpendicular position to the surface of the tooth may be needed.

When scaling possibly the ultrasonic may be unnecessary and hinder progress in very light deposits of calculus and may aid in burnishing them.