Video quality & frame rates

Im new to video and FCP. I have three devices shooting in different scenarios: Camera, GoPro & Drone. My lowest common denominator is the camera (APSc) shooting at 1080 @ 25p (I can shoot in 4k but has too much crop and focus system is not as good) The GoPro and Drone can shoot in 4k and better. My question is, should I shoot everything at 1080 for processing in FCP, or use 4k for the Drone and GoPro?

I only use 4K when I know I'm doing to want to fake close-ups. If you don't need to do all that pan&zoom stuff, nothing wrong with 1080. There is the argument that 4K originals will look better even edited in 1080, but I have found that very conditional on the footage content. 4K is much less forgiving, so anything that's wrong with it stands out like a sore thumb.

Thanks Ben; by the way, I'm learning FCP with your videos !
I understand that a Project with clips of different frame rates, FCP defaults all subsequent clips to the first one in the time line. For instance – I did a project with clips using 25fps as the intro clip,  then the next clips were (drone footage) shot at 30fps. I noticed that when I rendered the video at 1080 the drone footage was "jumpy". I checked by just rendering the drone footage (30fps) on its own and it was smooth as shot. I have done some research on this topic and it seems very conflicting. Also the different versions of FCP seem to have a different menu set-up for this topic. Hope what I am saying here makes sense.

Yeah, frame rates are a whole different story.

Yes it would seem they are indeed a different story. I have just watched a YouTube video by Gerald Undone which explains a whole lot about frame rates and has given me much insight to the subject. Anyway thanks for the reply.

Mixing frame rates in a Project boils down to what the content is in those clips. Specifically how much and what types of movement there are. My rule is to always shoot and edit 30fps. I find that scales nicely to both TV broadcast and YT. I've been doing drone shots for years and learned you have to be very careful with those. Slow, steady, even movement, but not too slow, as sharp as I can get it, and I have very few issues with those clips.

But yeah, I avoid mixing frame rates as much as I can, when I'm doing or overseeing the shooting.

And thanks for watching my videos.  Don't know if you're watching the YT or macProVideo ones, but thanks.  I've considered going back to doing those, updating everything, but with Iain Anderson's book out, and Ripple Training, I don't see the point.  Although I may do some updated "getting started" videos for Apple's pro apps soon.