From Evernote:

Steady resumption, ache is flat/downhill related

The last two days I have been able to go out for an 8 and 5 km run, and one thing is becoming clear: the ache is associated with flat and downhill running. The plan is to really concentrate on getting some good hard climbs in. The rather bizarre problem is to work out how to get back down each time!

− I should soon have a bus pass that will enable me to stink out the passengers and head downhill.

− I could also see about bike hire in town and ride the hire bike back downhill, although I'm not sure where this would work on a big enough hill.

− My wife works at the top of an 8 km hill, so I need to work out a way to run to her when she has the car.