Okay, that's a good point. I was keeping it simple. What I'm finding is that when I first went live with the site test searches came up within a few pages, and for the first three posts I was, in a day or two, getting Google Alerts. Now the site seems less SEO friendly. I know this is anecdotal, but I just searched for (evolution of storytelling)and have got to page 37 without finding anything. So, I'm not trying to diss either Suffusion or Yoast SEO, the reputations of both sets of software speak for themselves, but I do wonder why, after installing Yoast, SEO responsiveness appears to have declined.
I fully accept that this might be a coincidence, and these results are simply a part of the imperfections of search technologies. I posted here because I want to see if there is anything I've overlooked. If not, then, what is, is and they will probably change as the blog grows traffic.
In fact I hope that's the case, as I don't want to switch from either Suffusion or Yoast.