Since every approach comes without the option of a go-around you'd better not be low, however, what to do when you're high? The slip comes from the days of gliders without spoilers or funky ASW 20-style flaps.
Why the high nose? You're going sideways (ok, forward and sideways, but work with me here) Lee-side tailplane and wing are negatively influenced by the fuselage which is now in the airflow. Elevator has become less effective and therefore the need to hoik the stick back in compensation.
Justinpalma, did this gliding take place in Spain? Please check your PM, thanks.