An update: Still doin' the 5 x 5, but doing interval work quite a bit too. Been spending lots of time at a boxing gym... there's a workout! Started adding "real world" strength to the mix as well. Pushing cars 200 yards at a time for several sets, etc. Flippin' tires some too. On days when I don't have much motivation to figure out a workout, I go to crossfit and get the WOD. Did that today... 6 sets of 400m run/25 burpees (for time). Didn't think much of it at first but it turned into a real test of endurance before I was done. Then 2 hours balintawak training... I was wore out by the end of it all.