Defective or over thinking it?

[bdoug10]

Just noticed this white bit coming from the speed slot on my 6 iron. Clubs only 2 months old.Any idea what it could be?

[dM.]

Coming out from the speed slot for sure, not something like fertilizer getting stuck there from play? As in, if you clean your clubs now it reappears before you play another game?

[bdoug10]

Don’t think so, it was worse before I took the pic I scratched some off thought it was a bit off tee mark. I’ll ask pro shop tomorrow

[Steve]

Tee paint

[Captain Nemo]

Speedfoam?

[Dazza]

I've destroyed the speed slot on my 7 iron.
She's pushed right in now, courtesy of some rocky lies.