Thank you all for a lively discussion! I decided to circle back to my original question. BTW I would like to thank NGC for hosting the Registry, I think it is great! But being new to it, I have some questions, not intended to be criticism in any way. I guess I'll address them to @Ali E.. Happy Friday, no need to reply quickly...
I was browsing some competitive date sets and the point system seems very mysterious to me. I would have thought that the point scores for each coin would be derived from the grade of the coin (higher grade = more points) and from the relative scarcity of the coin which can be determined from how many of these coins NGC graded. I expect there's also factor of value but that usually is a function grade and rarity unless it is a very popular coin. Here's an example of two coins from consecutive years that I saw in this date set - https://www.ngccoin.com/registry/competitive-sets/334205/
Look at the 1907 2K on line 36. It's a very nice NGC graded MS-63BN. It's assigned Point value is 1,075. On the line above (35) the 1906 2K in MGC MS-64BN is assigned the Point Value of just 406?! Let's look at the NGC stats for each coin.
1907 2K MS-63:
In MS 63 BN: 4
In Higher Grades: 4
Total graded by NGC: 15 in BN + 11 in RB = 26
1906 2K MS-64:
In MS 64 BN: 5
In Higher Grades: 1
Total graded by NGC: 10 in BN + 8 in RB = 18
So it looks like a coin that is in a higher grade and is 30% scarcer got only 37% as many points...? Neither coin is remarkable in any way apart from the high grades that they hold.