I only have DJI cages. I sometimes incorrectly refer to them as “guards”
The biggest issue is noise. The combination of smaller propellers carrying a heavily loaded aircraft equal props that spin at almost max motor speed and so much noise that I’m inclined to wear earplugs if flying indoors.
The next issue as you mentioned is flight time. It’s a trade off but 10 minutes of flying a really cool mission is way better than not being able to fly at all. You can literally run into and scrape against walls and other obstacles and just keep right on flying.
Another not so obvious downside is limited wind resistance. The cages act like giant sails and catch the wind. A slight breeze is ok, but a 10 or 20 mph wind makes mavic with cages for unsuitable conditions.
While Tripod mode is recommended, I can and do fly in p mode with cages. My Mavic flys at a max of about 12mph in p mode with cages. I think this parameter is chosen when you turn on the cages setting in the go4 app. It’s just that in tripod mode you can typically not damage the aircraft or inturrupt its flight if you strike an object. In p mode you can hit objects hard enough to allow the cages to deflect into the spinning propellers.
The
guards I have are quite good for most vertical things, but they'd be useless for finer branches etc.
Have only really tested them once, bumped up against an external house wall lightly and was great, MP just hovered against the wall and I could fly off it fine to continue.
I guess I might use them if I start flying indoors for whatever reason, or if I was going to fly in a forest like area low with tree trunks around.
Great point about the noise, I bet it screams !
So too the wind issues with greater surface area to get affected there.
Ah, so that is what the cages setting does, forces tripod.
Good to know you can fly in P mode ok, but you'd have to be sensible for sure.
I saw this video on YT early on was very impressed.
Flight tests start at 2:20, particularly interesting is 4:00 - 4:50, where they land it on fine leaf bushes and force into it, take off again.
Surely with these cages fitted, permissions could be granted to fly closer to people for shoots like private functions, weddings etc.
It seems pretty safe in the hands of a competent operator, perhaps under a countrys relative licenced pilots process.