I have been following the methods here (with liquid chlorine) for about a year with reasonable success. I just installed a SWCG this weekend to avoid having to carry chlorine around all the time and now I am in the middle of a SLAM due to my inconsistent chlorinating schedule previously. My question is: why is it recommended here NOT to use the SWCG at all during a SLAM? I get that you don't want to use it to reach the shock level, but why not use it for the "maintain" part of the SLAM? I am one of those who cannot be at the side of the pool during a normal workday and it seems like the SWCG could really help in keeping those FC levels up while I am away and until I am ready to put in more of the liquid stuff. This is especially true if the SWCG is oversized as recommended here.