This is a general guide from the manufacturer, which shows the recommended model for the end user dependent on the user weight and use.
The
PS720 model is suited for those who are over the limit for the PS640 model, however would give someone over 95kg and under 125kg the best performance.
PS640 Recommended bodyweight Maximum jumping height
standard use: 95-115 kg 1,40 m - 1,10 m
Extreme use: 70 - 95 kg 1,90 m - 1,40 m
PS580 Recommended bodyweight Maximum jumping height
Standard use: 85-105 kg 1,40 m - 1,10 m
Extreme use: 60 - 85 kg 2,00 m - 1,40 m
PS520 Recommended bodyweight Maximum jumping height
Standard use: 75-95 kg 1,40 m - 1,10 m
Extreme use: 50 - 75 kg 2,00 m - 1,40 m
for more info see
http://www.powerskip.de/selectiontab.html