Caught this on Uni Watch. The Mets are tracking their performance by what they wear. Check out this picture showing the numbers on the scoreboard at New Shea.
Through the first 67 games, here is how it breaks out for caps:
The Mets Police preferred blue cap: 9-5 (wow, that's only 20% of the games played)
The despised all-black caps: 7-7
The hideous blue brim/black cap: 17-21
The 1-day MLB promoted red cap: 1-0
Forgetting for a moment the Memorial Day cap, the Mets have a winning record only when they wear the traditional blue caps!
As for the uniforms:
Pinstripes: 2-3 (really? Only 5 times this year?)
All White: 14-8
Home Black: 4-1
Road Black: 3-6 (I derived these from the overall black uni record of 7-7)
Road Gray: 12-14
Wish I could report that the black jerseys were bad at home. Of course this is a small sample... (yeah I'm looking for a reason to discount that winning record).