Hey there, I am also new to breeding and was hoping other more experienced breeders would have chimed in by now on the do's and don'ts on pairing up dragons to keep the genetics strong. From all I have gathered and again, I am new, het x het pairings are the best, and vis x vis pairings are the worst. With vis leatherback to vis leatherback you would get silkies. These are very hard to care for as their skin is so fragile. Anyway, good luck and hope it goes well.