it could of course be absolute coincidence however after performing the recent autopilot firmware update for the Vision Plus my blades are kitting the prop guards during a fast decent. One the improvements was supposed to be increased decent speed. I have flown helis for many years so I am fairly adept at gentle landings etc. I have never flown without prop guards since I fly in a field with long grass although it stills seems to catch it. Do you guys think I should ditch them? Will I notice any radical improvement in stability or flight time?