Gigi - yep I can sew, if miss Maddi would let me near the machine for more than 5 mins LOL

The contours look good but, I think she'd out wet them, we nearly out wet the flats already.

WOHB flat
The difference is, i'm assuming you're using flannelette flats.

Contours or foldups made out of bamboo fleece, will absorb much more than cotton flannelette. SO it's not the size of the thing, it's the absorbency level of the different fabric, that makes the difference. IYKWIM.