First pass
Spot the obvious risk first
Centering, corner wear, edge whitening, and surface marks decide whether a copy deserves a closer look.
Grading education
Train Your Eye
Learn what separates gem candidates from risky submissions.
Not all copies are equal. Compz breaks down the subtle grading signals collectors miss — centering, edges, corners, surface, print lines, and PSA 9 risk.
Copy comparison
Not all raw copies are equal
The same card can have very different grading risk depending on print quality and handling.
Downside check
Know the PSA 9 risk
Gem potential only matters when the PSA 9 floor and submission cost still make sense.
Free guides
Learn the first-pass grading read.
Practical education for spotting the copy that deserves a closer look before you buy or submit.
01
Copy Comparison5 min read
Not All Copies Are Equal
Why two copies of the same card can have completely different grading outcomes.
Read guide02
Grading Basics6 min read
What Experienced Submitters Look For First
A practical first-pass checklist for centering, corners, edges, and surface.
Read guide03
PSA 9 Risk4 min read
Why This Became A PSA 9
The subtle issues that turn a strong-looking card into a missed gem.
Read guide04
Dealer Eye7 min read
How To Compare Multiple Copies
How to quickly decide which copy has the best shot before buying or submitting.
Read guide05
Avoid Mistakes5 min read
The Biggest Mistake New Collectors Make
Why chasing PSA 10 upside without checking downside economics burns submissions.
Read guide