I think the main reason these FRs are not going that far for people is because they are max weight. I can throw a 160s Ion just about as far as my 179 & 180 Axes if height is not issue and especially if there is favorable wind. I see the heavy Axes kind of drop in the last part of the flight for me, and when I get some a few grams lighter I can see them holding in the air a lot longer at the end of the flight. The heavy Axes are incredibly easy to range though.