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Well, that teaches me once again never to try to reply to a post based on what I see on my cell phone, LOL (Sorry, I never even saw the grid).
I presume you experimented with different radii for the Gaussian Blur, so next, why don't you try:... something is wrong. I think it's the image itself, but I'm not sure. Perhaps I'm doin' wrong the blur effect? I'm using Gaussian blur with 8.0 number in it.