paint - discernible difference between 1 coat and 3?

[denim_genes]

I might have to cover a wall with 2 coats a third time, to fix patchiness (see here:

Will the wall colour be noticeably different from walls around it that have only 1 coat of paint?

[Mark]

Was the paint totally dry when you took the picture? Looks like you might be rolling the paint out too far and letting the roller get too dry.

But it answer your question, there will probably be some difference between a wall with one coat verses one with 2 or 3. Depending on what the old color was there is bound to be some level of 'bleed' thru on a single coat that would be reduced with 2nd and 3rd coats.