DVC requires 10% as a minimum down payment for financing, regardless of which of the two interest rates you end up with. They can increase the down payment required if you have issues on your credit that could result in future liens or garnishments (thus lowering your income/debt cushion).
As others have said, they asked us for 30% down. At that point, we declined, and cancelled the contract. We may buy in later, but that's a decision for another day. (By the way, DVC told us the additional down payment would not be reflected in lower monthly payments, but rather take money off the end of the loan term.)
I would like to point out a 'trick' available to those who do have their down payment raised. I call it a trick, but it's perfectly ok to do.
We were looking for 160 points for BLT. At 120 a point, we were looking at a 30% down payment of $5760. However, newcomer's to DVC can buy in for as little as 100 points. We could have changed our contract to buy 100 at Saratoga Springs for 94 a point, which would have lowered our 30% down to $2820.
Now for the 'trick'. After 4 months or so of on-time payments, DVC automatically considers you 'preferred'. So, we could have added-on points at BLT for the 10.75% rate, regardless of credit. Our DVC guide is still calling us to this day, wanting us to accept that offer.
When you combine the interest savings from paying the original loan off early, and the lower interest for the add on, you stand to save a ton of money.