Set registry composition, weight rating?

New to the registry world and have begun to put together my own set, noticed some cards have more value or "weight" in a rating system PSA uses.
Could someone explain the technical side of how overall rating is done....what is the calculation behind percent of set completed vs average of "weight" rating or actual grades.
What are some tips to get ahead of the rankings....
Strategically purchasing cards based on weight?
How does actual grade come into play vs weight?
Is it a must to purchase cards with more "weight" value in higher grades?
There seems to be a definite purchase value in obtaining those affordable cards with higher weight ratings.
Seems simple in a sense but I'm sure there is a strategy involved with putting together a registry set.
Would appreciate your feedback in this exciting endeavor.
Could someone explain the technical side of how overall rating is done....what is the calculation behind percent of set completed vs average of "weight" rating or actual grades.
What are some tips to get ahead of the rankings....
Strategically purchasing cards based on weight?
How does actual grade come into play vs weight?
Is it a must to purchase cards with more "weight" value in higher grades?
There seems to be a definite purchase value in obtaining those affordable cards with higher weight ratings.
Seems simple in a sense but I'm sure there is a strategy involved with putting together a registry set.
Would appreciate your feedback in this exciting endeavor.
CU Ancient Members badge member.
Collection: https://flickr.com/photos/185200668@N06/albums
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Comments
Kind of think of it this way... You buy EX graded 1952 Topps, but then get the Mantle in Poor.. When selling the set you would list as overall VG because the Mantle is worth more in the 52 set..
Strategically purchasing cards based on weight -- Not an issue, since at end of the set, no difference
Is it a must to purchase cards with more weight value in higher grades? -- Yes, the higher the grade the better off you are in the registry game.
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Working on:
Football
1973 Topps PSA 8+ (99.81%)
1976 Topps PSA 9+ (36.36%)
1977 Topps PSA 9+ (100%)
Baseball
1938 Goudey (56.25%)
1951 Topps Redbacks PSA 8 (100%)
1952 Bowman PSA 7+ (63.10%)
1953 Topps PSA 5+ (91.24%)
1973 Topps PSA 8+ (70.76%)
1985 Fleer PSA 10 (54.85%)
What mainly drives my questions were the fact that most of the registry top 10-20 is only %50 or less complete where I saw that strategically adding items with high weight rating multiplied with grade can be the driving force of climbing the ranks.....vs focusing on spending high $$ on name cards in the set, essentially there are some high value items to be had where it won't break the bank.
Just rambling on my observations for competing in the registry.
Should I worry so much about obtaining those items with favorable weight rating?
Or just worry about collecting the set as a whole first....regardless of weight rating.
Weight rating really comes into play when you have a lot of participants with %10-%50 complete sets.
CU Ancient Members badge member.
Collection: https://flickr.com/photos/185200668@N06/albums
----------------------
Working on:
Football
1973 Topps PSA 8+ (99.81%)
1976 Topps PSA 9+ (36.36%)
1977 Topps PSA 9+ (100%)
Baseball
1938 Goudey (56.25%)
1951 Topps Redbacks PSA 8 (100%)
1952 Bowman PSA 7+ (63.10%)
1953 Topps PSA 5+ (91.24%)
1973 Topps PSA 8+ (70.76%)
1985 Fleer PSA 10 (54.85%)
They told me ebay sales, well this card only sold once on ebay in the past year and only has a 1.5 weight. (My issue is with a 1982 and 1983 minor league issues of a player who retired within the past 10 years)
Thanks for any help.