BT wrote:
Don't use slips to bleed of energy (kinetic) in a glider..
use slips to loose extra altitude (potential energy)


Slips are great for non-precision instrument approaches, too.

Sometimes, the MAP can be a relatively short shot to the threshold.
Having to drop, maintain or lose speed, and land, makes a slip the right
maneuver. High and fast is no way to approach a wet runway.