On big ABEXes when para/wedge and door bundles were dropped, the calculations for stick length timings were tortuous. The wedge went on "Red On - Cut" abeam the early marker, then there was a head/tailwind gap till "Green On" when the door bundles went, after which the troops were dispatched. The timing to the end of the DZ was calculated from the early marker but if there were still jumpers on board when "Time" was called it would take a brave despatcher to halt the stick on its way out.