if the hatchlings are both female, then it makes sense.

you would give away a male mojave for two female possible het clown hatchlings, then you buy a male visual clown. that can make sense.

if these are males or when its a pair, i would say no. oh, and breeding possible het to possible het definitively makes no sense. a male pastel possible het clown is of very limited use, while a male possible het clown without pastel makes absolutely no sense.

so thats what it depends on: if you plan on getting a male visual clown or already have one, and if these are both females, then the trade makes sense. otherwise i would say dont do it.