I can see only one way that Steve can ride the year and it's on consistent daily miles - i.e. hitting the records average each and every day.
And I disagree. Cos he's based in Milton Keynes for the winter and the summer.
Where Steve is based is irrelevant. You have to do the miles. If you haven't got the speed for big summer miles / shorter winter miles you have to do daily average distance each and every day. If you can't do either of those scenarios then it equals no record.
It's not a choice between consistent miles all year or Godwin-esque big summer miles / shorter winter miles. There's plenty of room in the middle depending on how much more you think you can do in the warmer nicer spring/summer.
Tommy's graph on jo's visualisation looks like a sine wave, it's all about how tall you want to make that sine wave (the amplitude).
Tommy's monthly averages were (roughly): 154, 158, 178, 189, 211, 255, 276, 237, 222, 207, 200, 174 which has huge variation and some weeks where Tommy averaged over 300 miles a day.
So taking a requirement of 210 mpd average then a plan that starts of with months of:-
195, 200, 205
requires the following months to balance them out to average 210mpd: 215, 220, 225
then reverse those 6 months for the other half of the year to get:-
195, 200, 205, 215, 220, 225, 225, 220, 215, 205, 200, 195
Flatter sine wave and far easier than trying to emulate the huge summer miles of Tommy.
[EDIT] For reference, Steve's first attempt had monthly averages of: 185, 191, 205 (not including the day of the moped) which, given that he didn't start in great form and was aiming to beat a record that was only 205mpd, was looking in reasonable shape.