Forgefiend? That thing's huge isn't it? You need a bigger brush than a size 1. Use a large flat brush. Thin the paint down plenty and aim to apply 3+ coats (depending on the colour) so that the brush strokes from each coat are thin enough to not be visible by the time you finish.
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Ratius wrote:Same issue but with a large
GW brush and reikland flesh shade wash. Washes different?
With washes you want to apply a decently amount of wash and then use the brush like a mop to shift it in to the areas you want to be darker.
If the wash is too dark on raised areas and you want it to be lighter on raised areas while still being dark in shade regions, rather than trying to apply less wash, thin the wash down even further. I like to use a drop of flow improver, a drop of lahmian medium and a drop of water to thin down my washes.
Applying washes to large flat surfaces is difficult though. You just have to apply the wash to a whole panel at once (to avoid letting part of the panel partially dry before you've fully coated it) and minimise the amount you have to manipulate it. It's important to pay attention to whether the base coat is glossy or matte, they'll give different effects and the wash will flow differently as well.