So the Spider gene  does so much to the pattern in Royal Pythons, but has been known to have Neurological issues, due to their I have only  two females in my collection, one of those I  am now letting go...
Breeding Project
the female below does have the head wobble that is associated with the spider gene, and the reason once she leaves me, i will no longer produce spiders in any combo 
0.1 Spider  DH desert ghost genetic stripe
shipped price with in the UK £200
collection Price £150