alosso: This is a theory, but not reality I'm afraid.
Indeed, you correct. I retract what I said earlier. After restarting only twice on BP #10 with the hard pins set I received each the front and back pin one time.
From that I would assume that pins are dynamically attached to the pin setting. On BP #10 for example, you'll get x% of front pin and y% of back pin on the HARD setting. Those percentages may potentially be different for each pin difficulty setting on each individual hole. It's also possible the percentages are tied to the course rather than the specific hole.
One way BP #10 (or BP in general) could be set up might look like:
Hard - 75% front / 25% back
Med - 50 / 50
Easy 25 / 75
All conjecture and speculation without a test.
If anyone's willing to go 100-200 retries on each setting, let us know what numbers you come up with. ;-)
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To answer the OP's question; you know how you have that 360 degree view around the hole. Those all have to be photographed at certain, perhaps 15, degree intervals every couple of feet. That probably takes a little time.
Based on the available evidence we can conclude that WGT only has time to shoot 2 pin locations in this manner, so I imagine it's a fairly cumbersome task. Until they display the ability to give us a third pin set option we must assume they only have two.
That isn't to say that can't change in the future.