I going to downsize from 150 to a 135 sqf main, but I don't want 120 sqf reserve because i'm not sure i can land it succesfully and (!) because my home DZ have small plain landing area and much trees and obstacles around. So i think 150 sqf reserve will brings me farther and lands me softer. That is the reason to ask about packing volume. I want 135 main and bigger reserve, and hope such rig will have good look I have no possibilities to demo any of the reserve. I'll figure my choice on the opinions only.