Is there a "best" primer colour ?

[Bobby Conkers]

Any problems with enamel on acrylic/acrylic on enamel?

[BattleshipBob]

I have started using Mr Surfacer lacquer 1500 in black thinned 50/50 and i am very impressed so just bought a bottle of the grey as well, i always prime

[Mr Bowcat]

I've also recently converted to Mr Surfacer 1500 and like it a lot, seems to have more bite, and when thinned with MLT goes down lovely and smooth. Having said that, I still like Stynylrez primers, but use the Mr Surfacer when I will be applying masking as it doesn't seem to lift which I've occasionally had with other primers.