Thank, I like to share

darriSSight, if you are using RawMagic that should be a Cdng and FCPx can Read
that file type. That How I get raw in to FCPx, it 1/3 the size of tiff's .
So same workflow that you use with tiff's but use Cdng's.
At lest this work with raw2cdng on Windows PC, but I think it should also work with
RawMagic.
I use Apple ProRes 4444, It's the closes think to CDNG being it's a RGB 10 or 12bit
the bandwidth is about the some, around 220 Mb/s.
There again I shoot in the Largest frame size my cards can handle
Just re-frame/Crop, I do this all the time.
1872x1012 23.976p for continuous recording on the Oct 24th built, I will not use any think newer.
But if I Make a Video for
ME or a tutorial to help people understand ML better
then I shoot in either 1880x1250 3:2 ,1880x1058 16:9 or at 2k 2048x1024 2:1 2048x930 2.2:1
I don't Shoot any video unless I have plan it out, I would say that only about 20%
of the footage is cut out, where as when I would shot H264, or any other Cameras it more like
40% is cut out.
I have started to look at Resolve, but it would be as a last resort, it has a very odd GUI
which I'm not comfortable with.
And besides that the debayering in Resolve is not as good as the ACR plugin, in After Effect.
If I'm in rush to do a project I will sometimes make a ProRes 4444 In After Effect then
Finish off in FCPx with audio sync Grading etc...
You can go from 2k to 4k with tiff's that's about it for upscaling.
the reason for 2k Crop and not 1:1 non crop is there is no line Skipping, so no aliasing and moire
I hope I answered your Questions
FYI: when you import Image files in to FCPx you can Choose different Color Space .
there is 4 or 5 ones to pick, if you do not it will default to Adobe RGB.

PS: keep on a lookout I'm just finishing off a Full 3:2 sensor test(1872x1250) with Film convert Pro applied Etc..
should be up in the next few days.