Just to follow up on this thread, I bought myself a couple of halfords primers today (white and grey) after being a die-hard citadel primer user for many years. Very happy with the results so far, I'm priming some pendraken romans and the coverage is great and dries quickly. They seem to smell/act very similarly to the primer that citadel use, so at £7.50 a pop for 500ml can, I'm a happy man, cheers for the recommendations!