How does a MC card impact Registry Score?

[swarmee]

https://www.psacard.com/psasetregistry/rules

Additionally, the following point deductions are taken for Qualifiers. For example, if your card or ticket is graded PSA 9Q, the grade calculation in the Registry will be 7.

9Q = -2
8Q = -2
7Q = -2
6Q = -2
5Q = -2
4Q = -2
3Q = -1
2Q = -1
1Q & 1.5Q = no deduction

This means a Fair(MC) is worth 1.5 while a Good(MC) is worth 1... ;-)

Signed cards that have gone through PSA/DNA auto authentication ARE NOT eligible for PSA Set Registries even as Authentic since they're coded as autographed cards.

Autographed Cards
In the hobby, trading cards that are signed after-the-fact (not cards manufactured with autographs) are treated differently than trading cards that remain in their original form. While both types of cards are highly collectible, it would be unfair and illogical to treat unsigned and signed trading cards the same in the PSA Set Registry. In other words, they both deserve their own categories and should compete against like items. Because autographs and non-autographed cards are two different kinds of collectibles, the Registry does not permit signed cards which have been PSA/DNA authenticated in non-autograph sets. This only refers to non-manufactured signed cards. 1998 and later cards that come signed from the manufacturer can be used in most sets. Exceptions to the autograph vs. non-autograph card policy include player sets where a signed card can be used in place of an unsigned card and signed tickets can be used in non-autograph ticket sets.