I have never tried to collect a signed set, but figured I would give it a shot starting with the Justifiable Preview 2007 20 card set.
**Highlighted name denotes signed card in possession**
# | Player | Org. | Pos. |
JFpr-01 | Michael Almanzar | BOS | SS |
JFpr-02 | Andrew Brackman | NYY | RHP |
JFpr-03 | Madison Bumgarner | SF | LHP |
JFpr-04 | Michael Burgess | WAS | OF |
JFpr-05 | Ross Detwiler | WAS | LHP |
JFpr-06 | Nick Hagadone | BOS | LHP |
JFpr-07 | Jason Heyward | ATL | OF |
JFpr-08 | Matt LaPorta | MIL | 1B |
JFpr-09 | Michael Main | TEX | RHP |
JFpr-10 | Jack McGeary | WAS | LHP |
JFpr-11 | Beau Mills | CLE | 1B |
JFpr-12 | Daniel Moskos | PIT | LHP |
JFpr-13 | Mike Moustakas | KC | SS |
| Jarrod Parker | |||
JFpr-15 | Steve Pearce | PIT | 1B |
JFpr-16 | Rick Porcello | DET | RHP |
JFpr-17 | David Price | TB | LHP |
JFpr-18 | Ben Revere | MIN | OF |
JFpr-19 | Josh Vitters | CHC | 3B |
JFpr-20 | Matt Wieters | BAL | C |
