Is Human Dynamos: Kirby Puckett / Bo Jackson #635 worth grading?
Baseball · Baseball Cards 1990 Fleer · full price guide →
Strong grading candidate — 29× premium in PSA 10
A PSA 10 Human Dynamos: Kirby Puckett / Bo Jackson #635 sells for $43.00 against $1.47 raw: a $41.53 spread, 29× the ungraded price. A PSA 9 ($20.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
- Raw (NM)
- $1.47
- PSA 10
- $43.00
- PSA 9
- $20.00
- Gem premium
- 29×
- As of
- Jul 11, 2026
Break-even by outcome and fee
| If it comes back… | Sells for | Economy / bulk (~$25.00) | Standard (~$50.00) | Express (~$150) |
|---|---|---|---|---|
| Gem — PSA 10 | $43.00 | +$16.53 | −$8.47 | −$108 |
| PSA 9 | $20.00 | −$6.47 | −$31.47 | −$131 |
| PSA 8 | $8.79 | −$17.68 | −$42.68 | −$143 |
Net = sale price − $1.47 raw value − fee. Fee tiers are illustrative; plug your grader's current price into the calculator below.
Expected value — how often does it need to gem?
| Chance it gems | Expected sale | Expected net (standard fee) |
|---|---|---|
| 25% | $25.75 | −$25.72 |
| 50% | $31.50 | −$19.97 |
| 75% | $37.25 | −$14.22 |
At the standard fee this submission does not break even at any realistic gem rate unless the miss lands above the 9 price.
Which grader pays the most — and what a 10 takes
All centering standards →| Grader | 10 sells for | vs best | Front centering for a 10 | Back |
|---|---|---|---|---|
| BGS 10 | $56.00 | best | 55/45 | 70/30 |
| PSA 10 | $43.00 | −$13.00 | 55/45 | 75/25 |
| SGC 10 | $39.99 | −$16.01 | 55/45 | 75/25 |
| CGC 10 | $26.00 | −$30.00 | 55/45 | 75/25 |
Tolerances are each company's published centering standard for its top grade; surface, corners and edges must also be clean. Centering is the one you can measure yourself before you pay.
Full grade ladder
Raw conditions & history →| Grade | PSA | CGC | BGS | SGC | Graded |
|---|---|---|---|---|---|
| 10 | $43.00 | $26.00 | $56.00 | $39.99 | — |
| 9.5 | — | — | — | — | $22.00 |
| 9 | — | — | — | — | $20.00 |
| 8 | — | — | — | — | $8.79 |
| 7 | — | — | — | — | $5.60 |
Run your own numbers
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Grading Human Dynamos: Kirby Puckett / Bo Jackson #635 — FAQ
Is Human Dynamos: Kirby Puckett / Bo Jackson #635 worth grading?
A PSA 10 Human Dynamos: Kirby Puckett / Bo Jackson #635 sells for $43.00 against $1.47 raw: a $41.53 spread, 29× the ungraded price. A PSA 9 ($20.00) only about breaks even after fees, so the case rests on gemming. Centering is the usual reason a clean copy misses the 10 — measure it before you submit.
How much is a PSA 10 Human Dynamos: Kirby Puckett / Bo Jackson #635 worth compared with raw?
A PSA 10 Human Dynamos: Kirby Puckett / Bo Jackson #635 (Baseball Cards 1990 Fleer) sells for about $43.00 versus $1.47 for a raw near-mint copy — a 29× premium as of Jul 11, 2026.
Which grading company is best for Human Dynamos: Kirby Puckett / Bo Jackson #635?
By resale value, BGS 10 leads at $56.00, ahead of PSA 10 at $43.00. Fees and turnaround differ, so the best-paying label is not always the best net.
What centering does Human Dynamos: Kirby Puckett / Bo Jackson #635 need for a BGS 10?
BGS publishes 55/45 front and 70/30 back centering as the tolerance for a 10 (Gem Mint). Off-center copies are capped below the top grade regardless of surface — measure yours before paying the fee.
Is your baseball card centered well enough to grade?
Centering makes or breaks a PSA 10. Scan any card with Midpoint to measure its exact centering, get a grade estimate, and see what your copy is actually worth.
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