Just a short note

These days I've flown with and without propeller guards. The temperature was slightly above zero Celsius.  With guards was flying time 10 minutes (20% battery reserve), without guard 12 minutes (23% battery reserve)

A significant difference.

Still, I have a feeling, that when I will try to fly near to trees or low over meadows, guards can save the day.

Loose a couple of minutes and save a couple of props, seems a good trade off to me..

I always fly with prop guards on. Most of my flying is in the house and on the rare occasion I fly outdoors, taking them off then having to put them back on is a hassle, probably because I'm lazy.