[Daniel Fletcher]

The way I approach swapping purchased media into a sequence is to “option” it in.

So the answer is “No” this not in my opinion the best way to swap in purchased media into an existing edit of watermarked/placeholder stock.

I believe option+shift is held and the purchased clip is dragged onto the low res preview shot and the in and outs are carried over. The scaling can be an issue if the low res clip is scaled to 200% in the seq because the scaling is also carried over to the full res clip but that is a small thing to fix manually in the workflow compared to essentially reediting all the clips to match. This is where “scale to fit” “fit to frame” etc can be utilized depending on your seq and media resolution to make optioning in purchased footage much faster if used properly.

[Daniel Fletcher]

Check your sequence start timecode and ensure your IN point for export is at 00:00:00.

[Daniel Fletcher]

I would try making all of the presets as you edit and address the variety of lighting conditions. Label them accurately. Then you can apply them ALL to the master section of a random clip and DISABLE all of them; by clicking the little “FX” icon on the individual Lumitri effects. Now copy this group of disabled effects to all of the footage that still needs to be cut and as you are cutting flick them on as needed.

[Daniel Fletcher]

probably not the answer you are looking for but maybe make it black and white and just go for an artistic look?

[Daniel Fletcher]

this is probably related to premiere seeing the original clip metadata and applying the LUT automatically. In my opinion where you misstepped is when adding an additional look to revert that automatic LUT application. You should have REMOVED the automatic LUT.

Or to rephrase for clarity, in your case I think premiere is applying two corrections to the original footage and when you toggle proxies on the “auto LUT” is not being applied because the original clip metadata is dropped/lost on the proxies when they are generated/transcoded.
(yet another issue with Premieres proxy workflow)

Also Premiere is not making proxies of your adjusted clips it is making proxies of the original clips before and adjustments or corrections. You will need to render out proxies manually I think via media encoded and apply the LUT there if you would like to make altered color space/gamma proxies.

hope this helps

[Daniel Fletcher]

well of course they would say that. Don’t believe the hype.

https://eshop.macsales.com/shop/memory/imac-pro-2017

Good on you for doing your research on the config and getting other opinions.
Of course get the most machine you can afford, but the core of what Im saying is that you would have more than enough power and memory in that machine to get your work done. You will however probably want some additional supporting storage or equipment that would serve you better than upgrading the GPU etc. the main bottleneck of that machine for editorial is screen real-estate IMHO as great as the display is a second or third is preferred

Hope this is helpful

[Daniel Fletcher]

get the base and upgrade the RAM later from OWC when and IF you see performance degrade with lonnnnng sequences. This machine is MORE than adequate for this type of work. You could easily get away with cutting this content on a MacBook Pro or Mini.

IMHO
Save the money for storage and other supporting goods (sound, color, monitoring)

[Daniel Fletcher]

backup prproj
offline all picture media in “locked” seq
import colored seq
allow import of dupe media
remove color attributes of “locked” seq
relink media

I would try that or some variation of that to see if you can get the master color effects to link to the locked seq.

realistically, pancaking the two seqs and moving over the looks manually is likely the best option…

hope some of that helps

[Daniel Fletcher]

Give this a try. It may work for you.

Lock all tracks in the seq (shift click the audio and video track locks) to prevent markers from being placed on individual clips.
Then when reviewing the seq, pause playback with the spacebar, press M twice to add a marker and then tab, this will move your cursor and you will be ready to type a comment. No mouse needed.

[Daniel Fletcher]

just an after thought. –
I would recommend that you start or continue looking into an offline workflow for some of your higher resolution deliveries.