However, the Hlog still looks odd.
Howdy - scraped some numbers from MDWS and put together this little graph, comparing your HLOG with a couple of others (hope BE1 and Kitz don't mind me picking on them!).
The "problem" with the graphs on MDWS is that if you flick between users and compare, they're not on the same scale.
By picking people with different attainable speeds (forgetting interleaving etc), you can see (hopefully) that this probably shows where the useful tones are. What you really want is a continuous line (like Kitz) - where it starts to look "spotty" they're probably tones that cannot be used.
So, in a round about way, your HLOG isn't really odd it just shows you have a longer line than Kitz or me, and a shorter line than BE1 (or at least that's how I read it).