Bit the bullet and decided to go fill in my top left hand corner today. I had originally planned to set off from Leicester and finish in Derby and get the train back.
However, with the wind forecast to be northerly, vast majority of the climbing in the first 40 miles, and it allowed me to do an A road (I didn't really want to do it, but it was by far the easiest way to grab some squares) with a tailwind and more importantly downhill, I reversed the route.
Even better, with knowing which train I was going to catch I booked it last night for £2.80, ten quid cheaper than the turn up and pay price.
I did the 40 miles with all the climbing okay, missed one turn on that damn A road, but didn't want to turn around and go find it, it was literally a jump off the road and onto a track and back onto the road, neither the Garmin or Strava showed any turns as it was that miniscule, even though Strava did let me plot it on the web version.
Anyway, when I get home Veloviewer doesn't give me the square, so I open the ride and reload the activities, for those that don't know, Veloviewer uses reduced gps data unless you open the activity, which it will then use all the data. On reloading the activities it has given me the square, the road coming south must just go into the square, if I'd done my original route I wouldn't have got it
Results on the door, 42 new squares, max cluster increased by 45 to 4,536 and max square increased by 1 to 56.
Going to turn my attention back to the east it's much flatter that way