Things seem to be deposited in two "waves." One at 10-11 months prior to use, and one between 6-7 months prior to use. That's not surprising, given
DVC's internal reservation model. The 11-month deposits seem to be at the larger resorts most often, but not always. You've just missed the 11-month "wave" for late April, though clearly we're still seeing a few weeks go in. There will be another one as we get into the fall---if you're going to get something for late April, it should come through not much later than late October.
If we get to November, start expanding the set of resorts you would consider (and by that time, many of the better places, e.g. the Hiltons or Bonnet Creek, are likely to be gone.)