Proto-Concept C01 vs Proto-Concept C03 TC
Side-by-side factory specifications. Differing values are highlighted.
Proto-Concept C01forged one-piece muscle back with forged-in titanium rod (5-7 irons) · S20C carbon steel with inner titanium (#5-#7), S25C carbon steel (#8-PW)Proto-Concept C03 TCforged tour cavity back (soft-iron forging with CNC-milled undercut on · S20C/S25C soft carbon steel
Specification comparison
| Club | C01 loft | C03 TC loft | C01 lie | C03 TC lie | C01 length | C03 TC length |
|---|---|---|---|---|---|---|
| 4 | — | 22 | — | 60.5 | — | 38.5 |
| 5 | 25 | 25 | 60.5 | 61 | 38 | 38 |
| 6 | 28 | 28 | 61 | 61.5 | 37.5 | 37.5 |
| 7 | 32 | 32 | 61.5 | 62 | 37 | 37 |
| 8 | 36 | 36 | 62 | 62.5 | 36.5 | 36.5 |
| 9 | 40 | 40 | 62.5 | 63 | 36 | 36 |
| PW | 45 | 45 | 63 | 63.5 | 35.5 | 35.5 |
Highlighted cells differ between the two sets. Lofts and lies are factory standard.
Which should you choose?
The C01 and C03 TC share the same lofts on every club on file, so the difference is in head construction, feel and forgiveness rather than trajectory.
Both charts are reproduced in full on their own pages: Proto-Concept C01 specs and Proto-Concept C03 TC specs.