2012 Reds, sulphites raised 10 ppm

I had been thinking of raising these by 20 ppm prior to bottling, but looked back over notes and saw that we'd raised them 30 ppm back in November of 2012.  Can't be a heck of a lot left - there were subsequent rackings, but still I decided to keep things on the low side.  Didn't use 10% solution - just bought a decent scale so I could measure out tenths of a gram and diluted the right amount of meta in a random amount of water.