For me, color temperature and tint are equally important. I found both lights, the SC600w MkIV+ and the SC700d, to have equally ugly green/cyanish tints when I received them, so the difference between the color temperature and CRI in those lights really didn't come into play at that point.
Of course, I've come to expect this with most LED lights and it doesn't bother me one whit because I learned a long time ago how easy it is to adjust the color of the light with filters, and once filtered, I've found both lights quite pleasing.
However, once filtered, to my eyes, the SC700d, with it's higher CRI, definitely renders colors more accurately, which I find VERY pleasing. I was expecting this, and it's one of the reasons I decided to order this light (along with the increased output, 21700 battery, and extremely low moonlight level).
Would I have preferred the SC700d with a color temperature of 4500k or 4000k? Not necessarily. At this point I'm more interested in having an LED with a High CRI rating, then I'll simply filter it to get the color temperature and tint the way I want it.
I'm super pleased with the SC700d. It's everything I had hoped it would be.
Once thing I'd like to stress, however, is that the increase in size and weight really are noticeable. The head on this thing is BIG. Just something to consider if you found the SC600 series daunting for pocket carry. Personally, I never had any issues with the SC600 for pocket carry, and the SC700d won't bother me either, but the increased size of the SC700d might put some folks off.
The great thing is that the SC600 series offers some great lights that come very close to matching the level of output from the SC700d, but in a much more modest and pocket friendly size.