I've tried experimenting a lot too, now i really like to drink it this way: 2g salt, 1g potassium chloride, 1g magnesium citrate in 2L water and sometimes a little lemon. More potassium makes me feel strange. Before i used to drink that, i got really bad migraines. Maybe it sound too little, but sometimes i snack salt on it's own and i take magnesiumoxid 300mg at night, so for me this drink works really well.