I am not a Top Tier Master, yet, but from your stats it is hard to tell if that accurately represents you today. But from what NCVIZ pointed out, you can probably kill 2 birds with one stone working around the green. Low scrambling should correlate to higher putting average, and yours does. 1.67 putts is good, but for a guy shooting 31's, your score to me is amazing with that many putts per hole. Look at NCVIZ, 1.37 putts per hole. VIZ is stroking you almost 1 shot per every 3 holes just on the green, and almost 3 strokes per 9. The blue Duck is at 1.46putts per hole. Same story.
Improving your scrambling should improve your putts per hole as well. Since you are scoring low, I would think the holes you miss the GIR, is where you are picking up that extra stroke every few holes. So with that being said, practice your up and ins, and make sure your misses on your approach shots leave you a better chance to scramble.
With that being said, I bet you are a lot like me. You dominate certain holes, but miss the birds on the holes the Top Tier members make, i.e. Kia #4 and #5, St Andrews #13, etc. So you could also hit practice mode and pound the holes in between rounds that gain you that extra stroke or two per 9. Use the 10 stroke min to practice the putts to find the spot that is easy to approach to, and most familiar to putt from.