It's not really the case that members have first crack at DVC resorts. For any DVC resort that's fully sold (like VGF), the membership owns >90% of the room inventory. Non-members only get access to anything in that inventory under a couple of special circumstances: members who own VGF exchanging out of the system (uncommon) and villas that aren't booked 60 days out. That's also uncommon, as it's a very small resort that's very popular.
The great majority of what's available for reservations by the general public is the <10% of inventory that DVC owns. So that's 10% of a high-demand 147-unit resort. It's just going to be tough to get, unfortunately.
You'd have a better chance at finding availability if you rented from a member, but even then, it won't be easy to find availability unless you're booking right at 11 months out.