There are 3 ways in which to Gybe (or Downturn)
The Upturn Gybe – when the kite is flown up over the top of itself while the pilot turns downwind in an arc to head back the way he/she came from, this is the first type every buggy pilot should practise and use as its the easiest.
The Downturn Gybe – When the kite is flown under itself while the pilot turns downwind in an arc to head back the way he/she came from. This is used to get a fast exit from the turn because by downturning the kite it produces more power, this can cause the buggy to slide sideways, but if controlled properly this sliding will be minor and the increase in speed through it can be phenomenal.
The Flat Gybe – When the kite is flown across the window, reversed to sit horizontal, then powered up in the opposite direction, this is a very violent type of gybe and often the last one used and tried because if the pilot makes the slightest mistake it can result in an OBE (Out of Buggy Experience).
In the Upturn and Downturn Gybe the kite should be slowly raised to the zenith while the pilot slows down via a powerslide or natural motion. Then when ready the kite should be turned over the top, or under itself, when Upturning timing is not as crucial, but when downturning the earlier you send the kite under, the more forceful the manouver will be and the less momentum will be preserved and so if you have a heavy buggy, its better to leave the turn until just after the kite is pointing down to the ground on its path to completing its turn under itself.
In the Flat Gybe the pilot must keep the kite low, and when ready pull the brake on one side, to make it reverse to horizontal, while this is done the buggy must be turned quickly and with as little sliding as possible, before the power is pulled back on and the kite is turned towards the direction it came from.