Generally, your undercoat colour will slightly change the basecoat colour. Black primer darkens, white primer lightens, and grey primer generally provides a more "true" colour.
JBIZZL3Y wrote:Hmm, hopefully it does match the pot colour.. i have around 20 marines and a predator to build so a nice uniform base of mephiston would be awesome, especially with the speed that the spray would give me.. in theory any ways!
I think the Mephiston red spray is close to the Mephiston red pot, but there will probably be some difference in terms of tone just because of the application method.
Army painter matched their Pure Red primer with a brush on paint, so that might be an interesting alternative.