L.M.
Hi K.. I am getting ready to do the same thing when my little girl is 9 months - come August.
I heard that mixing formula and breastmilk will help. Start with 2 ounces of formula, 6 of BM, then 3 - 5, then 4 - 4, etc.
I also heard to use organic formula as it is sweeter. Similac makes an organic one that it easy to find in stores.
I hope that helps!