Help me out here-I was always taught (granted not by skydivers) that you can deconflict airspace by time, distance and altitude. Assuming time between groups was the same (based on ground speed) Crotalus' situation above seems pretty logical to me -if you're falling faster and opening lower, that would increase your separation altitude from a fixed horizontal separation... I'm a total newb, so happy to take advice, but I'd put the ff group out first, then the flatties. In the words of Rory Breaker, you may, enlighten me.
