My IP address changed recently (from an 86.x.x.x address to a 81.x.x.x), so I'm guessing some kind of segmentation has taken place(?) and the graph is showing a marked improvement. Gone are the hillocks that used to populate the graph at peak times and speed is still good.
This is with SH2 and 26 firmware. The speed test results are over wireless (a 5GHz USB adapter on my desktop).
The peaks are (I'm assuming) my Samknows device.
Sawbridgeworth area (CM21)