readings of io salt

What are your mag alk and Cal using instant ocean salt preferably at a 1.026 but if not what salinity and what are your 3 readings. Someone just posted a chart of all salts and it says io should be alk 11 mag 1350 and calcium at 400. I'm no were near any one of them on my tank the only difference is they measured at 1.0264. My reading are usually mag 1100 alk I use to get high 7 to low 8 now I'm getting 6.7 and calcium is 460. I use salifert and elos kits in the past for mag and alk and get the same readings. I use api for calcium which seems to be right on with a friends salifert calcium kit.