I do not run color only in between. I run a check with Calman from time to time, and when it looks like I need an Autocal (or when I need to open the iris) I run a gamma+color.IIRC your older advice was to run a gamma+color autocal every long while (say 500 hours or so), and to run color only autocal's in between, say every couple hundred hours. So now that you are saying you do not run any color only autocal, does that mean that you no longer feel its worth pulling out the meter in between to do a tune up with the color only? Or are you saying that at the time you do the gamma+color you just also redo that at the multiple iris positions? If so, why? IIRC running the gamma part all over again with each color calibration just wastes time, as it simply just overwrites the last gamma done (if all that's changing is the iris position).
Also - can you post how your grayscale looked after calibration but before your custom color profile was applied?
I have already advised that running color only for each iris settings was a waste of time unless you want the flexibility of being able to use any iris setting in a given mode. The instructions have been updated ages ago.
I'm in the process or running a new autocal because I have noticed that while the Spyder 5 was slightly more accurate than the Spyder 4 when facing the screen, it is significantly less accurate when facing the PJ, which is what matters with Autocal. Also, it seems to be responsible for my brightness drop (I'm back to 130nits in low lamp with the Spyder 4).
I'll post details when I'm done.