So my LO is almost 9 mon. He's been on a combo of breastmilk and formula for a couple months and my milk supply is finally getting so low that he's getting more formula than breast milk. Lately he's been acting like he hates his bottles if they have formula in them! Breastmilk bottles he will drink right up. I tasted the formula, ew! Similar pro advance has a metallic aftertaste!!!! Poor baby!!! I thought the canister had gone bad so I got another one. Same! What formula tastes better?