Different diving saves.
1 = Collapsing save
2 = Extended save low
3 = Extended save high.
Different collection techniques.
1 = Catch
2 = Parry to self
3 = Parry
4 = Tip
4b = Tip with top hand ( With Extended save high only )
Examples of each.
Collapsing Saves
https://www.youtube.com/watch?v=u0LQFlsWHoo
https://www.youtube.com/watch?v=j999SCAiDD0
https://www.youtube.com/watch?v=ZWpe9gZs_tM
EXTENDED SAVES
https://www.youtube.com/watch?v=y-ZevlFt4vs
https://www.youtube.com/watch?v=oIg0MbZqkB4