Seariously, it's the primer, It is smooth(ish) but the Vallego is a lot smoother. It strikes me that the Army Painter may well be normal Car Primer rather than designed for figures. The Matt varnish is a little bit satin rather than flat matt. Some will like this, I personaly want it flat. I will use the tin but I think I will be spraying one coat in this then a 2nd coat in Vallejo which is in my mind superiour but costs about 15-20% more expensive.
Finished basing the figures yesterday, needed two lots of flock as I was not happy with the coverage of the first lot.