Any advice on endurance? I think that's really the biggest issue for me. I haven't seriously sat through a full PT yet. with the little practice I've done, section by section, I can just tell this is going to be a problem. the idea of sitting through a 4-hour test just repulses me. I suppose the logical thing to do here is man up and do a bunch of full PTs and eventually get used to it? I was just wondering if anyone has a specific method for building endurance for this test.