I am an idiot. One coat of borrowed light on one wall and just realise i picked up modern emulsion instead of estate emulsion. I detest shiny walls! Can I put estate emulsion straight on top? Can I get away with just one coat’s worth and use the other stuff as an undercoat? I refuse to fork out for primer as well. It is a little sitting room, so not a high traffic area and i was looking forward to lovely chalky sophistication, but the sheen % is the same as dulux vinyl matt ( like the rest of my house, but I wanted a posh room downstairs - it is an old cottage).. Any farrow and ball experts around to help me salvage my dream?