Local Edit Proxy VS Rendering on Server

My projects are shot on HDV, uploaded as productions to FCSvr with edit proxies set for ProRes 422 proxy. Many of these projects contain Photoshop graphics, usually "builds" of bullet points or logos. Will I see a difference in image quality, specifically the graphics, between rendering locally with checked out edit proxy files and outputting the project to compressor on the FCSvr, which is, as I understand it, working from the original HDV files and original Photoshop layered files? Does FCSvr modify Photoshop files that are downloaded for local editing in any way?

Sorry I haven't replied sooner. Holidays.
1) FCSvr doesn't process stills that are used in FCP projects, it only makes note of their link to the project so it can check them out if necessary. When FCP is addressing a still it will either be the original on shared storage or a copy of the original that was downloaded upon checkout of the FCP project from FCSvr.
2) I doubt there is much of a quality difference between HDV and ProRes Proxy. All ProRes codecs are 10 bit and are designed to not degrade across multiple transcode passes. If anything, ProRes Proxy is capable of higher image fidelity than the 25Mbps MPEG-2 used by HDV. However, since you are starting with HDV, you don't gain anything in the upsample to ProRes. But you certainly don't lose anything either. Maybe some quantitative image analysis would show slight differences, but I bet you can't see any with just your eye.
3) It should be a wash. I'm pretty sure FCP renders HDV as ProRes anyway (might be wrong, but there are definitely other long-GOP codecs FCP handles that way). Either way, the fact that ProRes won't degrade the image data of the HDV means that using either one as a source should yield functionally identical output quality. FCSvr doesn't do any rendering. All it does is catalog media and hand that media off to Compressor for any transcoding. Any rendering of a composite will take place via FCP based upon whatever media it is linking to.
Honestly, if you don't see a difference in image quality looking at your HDV and the ProRes Proxy derived from it side by side, I see no reason why you shouldn't just do all your work and outputs in ProRes. Save the HDV as a source and a backup, but I don't think you are missing anything keeping your workflow in ProRes after ingest and transcoding.

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