Because the pro shows altitude in increments of 10 feet when under canopy, it's an excellent tool for learning to swoop and canopy control in general. You can practice your turns up high and know how much altitude you lost accurate to ten feet. There are too many fatal accidents related to canopy control. All jumpers should know the flight/control characteristics of their canopy and the digitude pro is a tool that they shouldn't do without while they're learning the flight characteristics of a new canopy.
