I have "dropped the pan" on maybe 5 or 6 transmissions in various makes of cars and trucks. Everyone seemed to have about the same amount of extremely fine "powder" on the magnet. As for a size reference... maybe 15-20 ml. This is the approximate dose of NyQuil in one of those graduated caps. Maybe slightly more.
I wouldn't be alarmed by the amount in your pic. I would assume most of it is from initial break-in.
I wouldn't be alarmed by the amount in your pic. I would assume most of it is from initial break-in.