Has anyone found a grey that matches the VSD? I want to reprint my gladiator to match, but all the ones I've tried have too much blue.

I don't think you will ever find a straight match so you may very well have to mix your own version. That said Vallejo Game Colour Cold Grey and Stonewall Grey are fairly neutral and should provide a good starting point.

Vallejo's "Deck Tan" is also very similar, but slightly more yellowish.