Been trying to decide which is the better choice. Read that high altitudes would do better with dial gauges because they allow for more precise adjustments, but they need to be recalibrated every so often, and even before you use it for the first time. The extension office will do it for you, but one of the reviews on Amazon said her local EO quit offering that service. Weight gauges only need to be cleaned, but they can only be adjusted in 5lb increments. Has anyone here used a weight gauge at a high altitude with no problem?