Well.... truth be told.....
I haven't gone jogging in the daytime in a long, long
time.....
Most of my jogging is done at night. Can't be helped - I'm still
schooling.
It also helps that it's cooler at night. 
I don't jog at all. Imagine my surprise when my 2.4 timing actually
improved.
This is what life as a gun specialist does to you, I guess. Just
about every other station improved as well. Without any training,
my pull-up also now become 10, and still increasing.