Not to be argumentative, but how would you know whether Disney needs a number of points from a specific unit in order to sell a specific larger number of points to an existing member? How would a targeted purchase of, say multiple SSR contracts even be traced back to a specific unit, other than by someone searching through public records to see what units Disney has ROFR'd, then adding up all the fractional percentages? Even then, you have no way of knowing if those points were then re-bundled into a new contract. I'm not sure how that would be borne out in any way that would be recognizable to anyone on these boards.
I just bought some add-on points direct for BRV. I suppose I could look at the unit and the percentage of that unit that I bought, then go to the comptroller and go through all the ROFR'd contracts, find the right unit, then add up the percentages, but I'd still have no way of verifying that those points were the ones sold to me.