I have been doing this exercise routine with some variation and assistance work for nearly a year. I admit that I often did not keep this journal but have faithfully plod through the routines week after week. It is remarkable in its simpicity. I found myself wanting to tinker with it such as using day two to determine the best course of action to surpass day three five minute timing or skipping to another level because I knew I could do the pull ups despite the fact hat I really had not hurdled the lower level. At this point I want to say I came to the conclusion that a killer workout could be achieved at any level for day one. Day two and three merely told you what you instinctively already knew. That you could either do enough movements with strict form fast enough or you couldn't. Everyone enters the site wondering where to start after a year of gong back to the beginning twice to harvest the work I say the beginning, after all what can you lose by doing 50 or 60 rounds of day one level one, or doing perfect, slo-o-ow pullups for day two to indicate mastery. Hurdle day three and move up, it was only a week and you added a little depth to your endurance. I watch the P90X infomercial and always think that there is no program that I can follow religously for 12 weeks without something forcing me to adjust. I think my overall posture and spinal alignment has improved during this last year. Simplefit workouts were a little like traction in pulling me more erect. I have to admit this seemed more like pain at the time and I did not think my posture was that bad at the outset, but a year into it the results belie the belief and caused several periods where I had to adjust to continue. Over the course I lost nearly 35 pounds and have never looked stronger despite always being stronger than average. I kept saying I was doing this to move on to crossfit. I am not sure that I like all of the crossfit routines some of them require more coaching than I have available and crossfit has a dogma about it that is unattractive. Yet I still want to do a 40 minute Murph simply because I promised. So today I am back to level 5 for the third pass up to level eight. Each time through I have followed the program more strictly, the exercises with better form, and each pass has yeilded better results whether from repitition or the fact that I am doing them better the outcome improves over time. I have never been able to add a mile run before or after without ending up losing a week to recovery, this is only important for the Murph promise and has nothing to do with Simplefit. I am 58 years old and I look like someone placed an old head on a new body, so thank you Kevin. I especially admire your forebearance as each of us tackles this challenge and the assumptions built into the program. Wish me continued success but I will be here.