Hackmotion Address/Top number factors

I've got the Hackmotion (with the basic flexion/extension-only package). I was curious about your thoughts on how a few factors will impact the readings. I consider my grip neutral (by Tyler's definition), but my address numbers are usually closer to 0 than 20. This seems to be due to a trigger or forward press that gets the shaft closer to an impact position rather than vertical. It is really hard for me to start the swing from a static position with the shaft vertical.

Also, I seem to get extension readings at the top (like 25-35 despite having a completely flat left wrist on video). It seems like my hackmotion will get a high extension reading when my wrist is flat or even bowed but radial deviated. This only happens on full swings. Has anyone else seen this or similar issues? I'm wondering if it is just an issue of when the reading it taken or if it has trouble differentiating radial and extension. I know they are coupled to some extent, but I shouldn't get 20 extension readings when the video shows flat/bowed.

I know you can't diagnose any of my issues without a swing. I'm just curious if this is common or if this typically means something else.