The protection on the heavy plate greaves was less than any other heavy plate template that I made (cuirass, vambraces, gauntlets, and great helm). Usually protection is identical between any piece of "heavy plate" out of the same metal, so I'm wondering if this might be a bug?
For comparison, I've highlighted the appraised differences:
Template | Modification | Puncture Protection | Slice Protection | Impact Protection | Electrical Protection | Density |
great helm | none | 8 - very high | 9 - great | 7 - high | 3 - fair | 6.32 |
heavy plate cuirass | none | 8 - very high | 9 - great | 7 - high | 3 - fair | 6.32 |
heavy plate gauntlets | none | 8 - very high | 9 - great | 7 - high | 3 - fair | 6.32 |
heavy plate greaves | none | 8 - very high | 9 - great | 7 - high | 2 - low | 6.32 |
heavy plate vambraes | none | 8 - very high | 9 - great | 7 - high | 3 - fair | 6.32 |
great helm | reinforced | 9 - great | 9 - great | 8 - very high | 3 - fair | 6.32 |
heavy plate cuirass | reinforced | 9 - great | 9 - great | 8 - very high | 3 - fair | 6.32 |
heavy plate gauntlets | reinforced | 9 - great | 9 - great | 8 - very high | 3 - fair | 6.32 |
heavy plate greaves | reinforced | 8 - very high | 9 - great | 7 - high | 3 - fair | 6.32 |
heavy plate vambraces | reinforced | 9 - great | 9 - great | 8 - very high | 3 - fair | 6.32 |