L.R.
With our son, we had no choice but to start mixing. He had a VORACIOUS appetite and refused to take the breast because I became pregnant again when he was 3 months old (apparently he hated the new hormones). In the meantime, I had to pump to increase my milk supply (which took about a week). We ended up mixing the 2oz water/1 scoop formula mix (standard) then we'd add one ounce to his bottle. This introduced him to the formula. Which he hated plain, but didn't mind when we mixed it. We'd do 4 ounces breastmilk with one ounce formula. Once my milk supply grew, we'd do 6 ounces breastmilk to two ounces formula. Good luck. It's all about balance. I recommend Earth's Best Organic formula or Parent's Choice organic (from Wal Mart). My son hated everything under the sun except these two kinds. Hope you find your balance!