Using native fruit trees as rootstock

Any Florida permies here?

I recently dove deep into a native rootstock research warren. Here in the great state of Florida we have plenty of native species that are closely related to bred cultivars of common fruits. This presents a lot of opportunity to use native species as rootstock for hyper local adaptability to climate, soil conditions and pest pressure. One example that  particularly interests me are the vacciniums. We have several native members of the genus here including an arborescent member called sparkleberry. I came across this video by the UF extension:



Low chill hour southern high bush cultivars are 100% graft compatible with the sparkleberry. On top of the previous benefits mentioned, this graft union produces a "blueberry tree;" that is the blueberry scion takes on the arborescent trait of the sparkleberry. This presents a lot of potential for redefining the blueberry's role in a food forest among other interesting possibilities. There are many such examples like this where the potential of a beneficial graft is possible but commercial growers aren't doing it because it may not be economical or practical for their purposes.

Is anyone currently exploring using native specimen collected from your property or near and using it as rootstock to create hyper-local adapted fruit trees? Please share your examples and experience!