Pyro,
Not sure what you mean by "...dialing in my SWCG".. ??
It is not like you set your SWCG to some magic number and it stays that way for the entire year, at least not in my case. I have to continually adjust the % output of my SWCG as the weather changes. The hotter it gets and the longer the sun is out, means I have to keep adjusting the % of Output to match the ever-changing chlorine demand of my pool. Obviously, the opposite happens as we enter the fall months.
I say this just in case you think that the SWCG has some self-regulating system that adjusts the chlorine it produces with the amount of chlorine needed.
Thanks,
Jim R.