Hi! I already have two gravely, one pm148 and one pm152. Those are small mower but I like them. Since last year I have got a lot of big contracts (5-9 acres) and I feel that I'm not productive. My price are pretty good but my production is not. I did 625 hours with the pm152 and 400 with the pm148. Things look like I'm going to do 700hres with the 152 and 450-500 with the 148 in 2008. About 85% of my accounts could be mow with a bigger mower and the other 20% could be done with the smaller. I would like to know how much time could I save with a 60-66 inch mowers and a big mower (like the new gravely 66" with the 31hp kawasaki or the diesel pm260). I would like to save 200 hres on 1150-1200. Is it possible? Thanks!