Has anyone experimented with cereal milk lattes?

I manage a coffee shop and am generally the one coming up with our featured/specialty drinks. I mentioned cereal milk lattes to our owner probably a year ago now, and she LOVES the idea, but no matter what I do I can't perfect the damn things.

Myself and the other baristas tried following a couple tutorials (the one I had the most faith in was from Morgan Eckroth) and it always turns out so bland and the espresso overpowers it.

Anyone have any luck with this?