I had a three month layoff from January to March. I'd been lifting for about a year prior to that, first SS then TM. As a 5'9" female weighing 160 lbs I had progressed to the following for reps: Squat: 160 Bench: 107 Press: 80 Deadlift: 228 Power Clean: 106. When I started again I started as if I was starting from the beginning fresh, with the following numbers - Squat: 120 Bench: 92 Press: 67 Deadlift: 190 Power Clean: 85. During the next two months I had to progress less quickly on my upper body lifts due to some arm tendinitis, but my squat blew by my previous best by 25 pounds, all on linear progression for a PR of 185 for reps. I got back to the same deadlift. I got my power clean up to 110. This was all done along with all my other training (martial arts). Also, I'm 40. In the long run, the three month layoff was negligible.