humbrol primer

i currently have a can of humbrol primer i tried it on a model of mine and at first sputtered out a glob of brownish stuff. I think it was the fact that i didn't shake the can enough and i was right BUT THEN it just came out in a torrent almost totally obscuring the surface detail on my precious model later though it just seemed to settle down on and the surface detail became visible again
the can also had quite a tendency to clog (and this is a brand new can)

so either it's a bad can or humbrol primer just sucks

i don't recommend getting it unless you have good experience with it

Hope i didn't bore you with my little rant