I have been using Randy's DIY recipe 1 for a while now, but I have never dosed the magnesium part. My AWC has kept my magnesium levels stable at an acceptable range. If and when I decide to start adding the magnesium part what are the disadvantages of using just magnesium sulfate for the solution instead of the magnesium chloride and magnesium sulfate together. I have the magnesium sulfate (epsom salt) but I'm trying to decide if I need to buy the magnesium chloride to mix with it or not. The article says how to do it both ways but it doesn't say the benefits of using both vs just magnesium sulfate.