Canon 77D 45-point AF

After years of getting by with the 9 point AF in my Canon 50D, I was curious to see what shooting with the new 45 point system would be like. Results were not exactly what I expected. Click below to see examples –

The three shots at the end with large grid are examples of the Live View “Smooth zone” AF mode.  Not the same as the 45 point mode, I included it for interest.

Repeatability is not exactly rock solid!  Which confused me, sometimes to the point of frustration.  Now I was using an old Tamron 17-50 f/2.8, so no STM compatibility.  Maybe with a new STM lens the pattern would have settled down better?  Also I have not tried the multi-point mode for a Nikon.  Maybe they are just as ragged?