Drive is starting to look good... Coast is shallow... But I thought your patten before removing 0.003 was shallow too. Since you don't know what your 1st pattern was, I'd go much deeper from what you are... Like 0.010 thou. See what that pattern looks like. It should be obviously deep, if the rest of your set up is predicable. Since your backlash is a bit loose, moving the pinion that far will probably not require and change they're either (high gain for low effort) With that, you have it bracketed and can really start to dial it in.