I was taught (from reading here and the S2H class) that quick drop is not really intended for use much beyond 500 yards as it’s less consistent at further distances. Additionally, the margin for error is significant enough with elevation/wind for longer shots that many people rely on a calculator or at least the phone lock screen at ranges beyond 500. Quick drop is meant for quick shots and rarely are people shooting quickly at ranges beyond 500 yards, probably much closer for most.