Does the primer color make a difference

This is one topic I never agreed with. A primer or sealer should not affect your final color. If it does, the you have NOT achieved FULL hiding or coverage. Think about it. If your color is being affected by your primer or sealer then what's the point of the color?? You are NOT getting the full effect of the color. Finding a sealer or color CLOSE to your color will help you get coverage faster... but if it is showing through, and affecting your final color.... then you are not achieving full coverage. Getting full coverage is essential to a perfect color match. If the sealer or primer was showing through on every single car you painted the same color by every single different painter in the world it would be impossible to achieve proper color matches.