really I not use charts I make my own charts, that chart not for autos anyways... I seen when I was looking over from start of this... archie I think posted it and I also seen in testers group.. I worked out a nice precharge dose, then I had on autopot little sooner then I wanted so I did half dose on that one but only 1 gal in res, just to hold it over... I boosted it up on Saturday, so far thats taking very well I added 7gals to res that time...I'm logging things very closely and watching like a hawk to see how things working out or if any def..with the lec it's very easy to see, I love the look of that...Like a bright sunny Day