This is the initial mix. But from working regularly with the RF (SC) line. I am quite positive that the adjustment will be no more than .5% up or down for one or both flavor concentrates.
I mixed it at the 2% and it was a good balance between the two, but I wanted a little more intense flavor so I upped both to 3%. That is a good place for me, but it may have been good at 2.5 % also.