BJs has occasional additional discounts on Disney Gift cards. If you are a member, it is worth mentioning that RIGHT now, the $100 gift cards are at a total of a 6% savings. The $500 ones are at just under a 6% savings.
If you stack this with your Disney Visa card, it is 7%.
I don’t know how long this particular discount will last. The normal discount is more like 4%.
FYI