One also has to wonder, how well this ties into Google's requirements. Almost worth testing out. Tried using YOAST's sitemap with his plugin, and sadly I have actually seen a decline in my rankings.

For some reason was by far better when using Google's Sitemap Plugin.

I think I will give JetPack's a spin, re-submit sitemap to Google and see where it goes from there. Certainly have nothing to loose and quite a bit to gain!