Kevin, the Mt Rose topic is a subset of this one:  What people do to keep their heart and body in good shape.  I don't think the topic will stray too far off.
You yourself are an incredible inspiration.  2+ packs!!!??? OMG, man, you must have been trying to kill yourself, and I guess you nearly succeeded.  The turn-around you made is a heck of a great inspiration.  I am envious of  your several hikes a week.  One of these years, I'll have to try to retire and see if I can match half of what you do.
Pickering's weekly hikes are really impressive, too.  I don't want to hijack this thread, but I think I'm going to need a TKR (on my knee) if I am going to keep going like you guys.  It's falling apart this spring.