In case no one told you this little trick ... if you are doing any bottle feeding, the whisk & a measuring bowl (cup) work wonders. (Much better than shaking, stirring or just trying to reduce clumps on your own.) So my advice? Whisk it good! Crack that whisk ;)
And if you talk to Mr. MachC, apparently there is a technique to whisking that he's learned from Master Chef.
Pffft. We'll see about that.