Photoshop :: Canvas Texture

I have been using the action Hayes Island Variant on a couple of my photos, it makes them look like they are painted on canvas. The problem is that it uses the built-in Photoshop texturizer for sandstone and canvas, and in the more open areas like water and sky, you can see a repeating square pattern. I printed it out on glossy paper, and you can definitely see it. I want to get this blown up on a poster. Any suggestions on another canvas texture that doesn't look like this, or some other way to fix it?