Simon, when equipping SP & PP on my phone, as the green bar moves across the segmented meter, transitioning to the blue accuracy part, it messes up my timing. Basically too many vertical lines to follow. Keeping the meter clean helps me time my swing much better.
Having multiple vertical lines doesn't bother me personally, only the excessive size (height) of the meter.
Another case of each to their own, I guess...
Play well, bro.