For VTSI I received an escrow share for each share I had. I then have received several payments through each of those escrow shares. I would assume the same here - multiple payments against each escrow share (CVR) as opposed to a separate CVR for each milestone. Simpler that way.
If I could afford to buy all of them, I would not need to buy any of them and I sure wouldn't be spending time on the message boards!
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