Scratch built Ork Mek Guns finally getting paint - WiP

Started right in on my next project, getting at least some of the mek guns painted.  I went with leadbeltcher this time instead of the vallejo black metallic.  Then I did the full rust effect - more then I had originally planned - and finally tried out the P3 Armor Wash which I have seen recommended a lot online.

So far my opinion on the armor wash is meh.  It has way too many air bubbles, pools too easily and the finish is almost a gloss.

Anyway, pics.