I love your optimism and confidence sadly a specialized store does not always mean that they know better.
There is a pet store specialized in reptiles close to me, the owners have 30 years of experience combined
Long story short bought a beautiful banded male from there 2 weeks later it had mites when there hoping they would carry PAM (which they did).
When I went there I played stupid and ask about mites, well that they I learned that mites just appeared, just like that out of the blueand I was told it was just normal when you own reptiles to have mites
I will not even go through their husbandry practices, again 30 years combined, specialized store, they breed some of their snakes, and others are supplied by some local breeders.
At the Repticon show they hab a tub full of BP and on the head of one of them was a HUGE tick (how do you miss that I have no idea) when told about it they took the BP out, remove the tick put the BP back with the other ready for sale![]()