Hi girls!!

We are still using terryflats with a cover, but im keen to get her in mcn asap. a couple of days ago i tried a osfm ittibitti (cause they are a bit smaller than rest of my stash) but it leaked up her back. does this still mean shes too small? or could it have been my n00bness?
I have no idea how many boosters we will need to use cause i guess thats trial and error?
Any basic tips/starting points fir me to start with and then i can go from there?
(ps my stash is made up of osfm ittibittis, osfm bbh and some dragonfly magics)

sent via my vortex manipulator!