Ignore your pinion depth measurement as it doesn't matter. The backlash and gear mesh pattern are everything. I'd try to get my money back for the tool. Have you made sure your backlash stays consistent while you make pinion changes and pattern checks. It needs to stay within the acceptable range at all times.
If you don't have an installation manual go here
https://www.ringpinion.com/Downloads/installations.aspx and scroll down to Yukon Installation Kit. He has a lot of patterns shown and how you should move to compensate.
You look close honestly, but I'd make some adjustments to see what happens to the pattern. You might want to keep a note pad around to help you remember what the result of a movement was as you go.
Also, keep in mind that you may not get it right the first time. So long as you're not so far off as to cause damage, a noisy rear end can be fixed/adjusted to try and get it quiet. Yeah, it's messy but that's the only way to learn. Good luck and take your time.