Pretty Darn Sensitive! To prove a point with a friend, I took three cell phone videos of his blade: prior to balancing, after it was perfectly balanced, and then I then stuck a short piece of vinyl tape to the blade tip and the blade dipped. So how much did this piece of tape weigh you ask? 0.1 gram. (One tenth of a gram, weighed using a jeweler's gram scale) What's a gram? 1.0 gram = 0.0352739619 ounces So a tenth of one gram = 0.00352739619 ounces Rounding up makes this almost 4/1000 (four thousandths) of an ounce. Sensitive? You bet it is!