My biggest recommendations are:
1) Study the points charts to travel in off season since points are often half of the high season requirements. People say the Abound points charts are complicated but really it is easy once you get used to it. There is usually a big difference in points based on view category and unit size so you can also maximize points this way. Frankly you can get a lot out of your points if you maximize.
2) For high demand resorts, book at 13 or 12 months depending on what is allowed for that resort. There is no list of when inventory is released i.e. 13 vs 12 months, but you can ask on TUG what is typical and they can tell you. For example, I believe Aruba is released at 12 months. I have actually seen good inventory released in Aruba at 12 months. Some resorts have two releases, one at 13 mo and another at 12 mo.
3) Do searches yourself even if you are not planning to book there yet. That will give you an idea of release patterns and how soon you need to book.
4) For your home resort, it is almost always better to use the underlying week and not points, whether the week is in Abound or Vistana. I anticipate that the home resort booking availability will remain the same. I do not think Abound will try to steal inventory from Vistana. With MVC, weeks owners did not seem to have an issue with not being able to book their home resort.
If I think of any other strategies, I will add them to this list.