In Bruce Barnbaum's "The Art of Photography", he says (on page 94) the following:(posted 8067 days ago)"...Microdol-X has a strange flaw in its development characteristics. If the negative has a large dense area in direct contact with an area of much lower density, with a sharp edge at the point of contact between the two areas, there will be a slight "ghost" image developed into the negative. This will translate into a barely visible gray line within the light area on the final print. It is not very obvious, but it is there....."
I've never heard of this. Has anyone else fun into it?