When can we play in the mountains again?

Since my foot didn't feel great during Wednesday's hike, I've been trying different cardio exercises and shoes with the intention identifying a combination that will provide a sufficient workout, but not aggravate my foot.  The stair master didn't work, hiking shoes on  the treadmill didn't work, but with the guidance of Scott at UpHill Athlete, I think that we found the right combo:  stiff mountaineering boots with a light pack on the treadmill.   

Hopefully my foot will feel as good while hiking tomorrow, if I have to spend more time training on the treadmill and not in the mountains, Chevy is going to find a new person: