Twenty weeks, five months, less than half of a year. That’s how much training time I have from now until my third go round with Ironman Lake Placid. (Previous IMLP race reports here: 2010, 2011.) With some experience, my understanding of what “5 months of training” means has changed considerably. For my first Ironman, 20 weeks to go was filled with questions such as: Will I finish? Will I hear Mike Reilly call my name as I cross the finish line? How difficult will it be to pee during the race? What goes on in the changing tent? Is it …