I bought a bottle of Vallejo model colour in Ivory a while ago and have tried both airbrushing and brush painting with it, It was crap, (I truly cannot be nice about it), only got this as it was the first brand in ivory I saw and frankly find it too stark a white to be really ivory anyway.

I recently, (last night), tried airbrushing it with my newly acquired Iwata thinking it may make a difference, no, it was crap, still.

For all the raving people do about Vallejo, especially when compared with Tamiya I expected it to be excellent.

I even find Tamiyas paint brush better than this with a drop of IPA keeping it from drying too quickly and Tamiya are notorious for being rubbish to brush.

I may try a bottle of the model air which is, as I understand, pre-thinned and designed for airbrushing but certainly the model colour range is not one i'll be using anymore of.

Frankly for brush painting I don't believe you can beat Enamels, (I use Humbrol).

For metallic acrylics, the best i've yet seen in brushability and for fine-ness of metallic pigment are Citadel, (Games Workshop)

Mithril silver      = Aluminium

Chainmail         = Steel

Boltgun metal   = Gunmetal

Shining gold     = Copper

Burnished gold = Gold

The pigment is really fine and nothing like as obvious as Tamiyas basic metallics, (I like the Titanium metallics from tamiya though)

They brush excellently and can be thinned with water, (also the pots have a nifty little indent in the lid for using as a palette)

They airbrush nicely too when thinned with Tamiya thinner, X20A