that's a double-digit difference over the course of a season -- I'd call that a major jump considering he probably should have been on the decline When Bonds was 36 that was the year he hit 73 since then its been, (37)46, (38)45, (39)45, (40)5, and (41)26 HR/year. Hank Aaron went (36)38, (37)47, (38)34, (39)40, (40)20, (41)12 Ruth went (36)31, (37)13, (38)21, (39)17 So I wouldn't call that a major jump in production. And its definately not a major jump in production compared to Aaron. Bonds probably used steriods. Bonds also has the benefit of modern conditioning and diet. However, Bonds is a freak of nature Just like Babe Ruth and Aaron. People forget what kind of production they had. Through his 2000 season (age 35), Bonds had 4 seasons of 40+ home runs out of 15 total seasons. Starting with his 2001 season, Bonds has 4 more seasons of 40+ home runs out of 5 seasons (I'm not counting his 05 season since he only played 14 games). That's a pretty big jump in production.