This was all a long time ago, and only in the last couple of years did the math totals come up, and having posted them, it later occurs to me that's only by the hour. My working partner (weighed about 265) and I chose to work solo, an hour on and an hour off during our shift, so 4 working hours, 4 playing cards. With 4 hours working, deadlifted 4-10 tons a day. On occasion, double shifts.