The DP said, your LUT is Red Dragon Color 2 Gamma 4 - but it turns out those instructions were for someone editing on Premiere.
I'm working with Pro Res files, not the original R3Ds, but damned if I can find a LUT that is the Avid equivalent. Does anyone know of one somebody has made? The Sony 4 LUT in my Avid is semi-close, and I may just end up color correcting from there. But these files are going to keep coming and I'd really like to keep this simple.