Please do not consider training unless using simulation (only). There have been enough deaths and broken kit already. Chris Rollings in an earlier thread gave a detailed account of well constructed trials performed at height. It is not necessary to repeat these, surely. Please note his conclusions.If your glider has an approved mod. for a nose hook ( if it has only a winch hook) then consider having one fitted. Otherwise know that you could kill the tug pilot if for one brief moment you take your eyes off the tug (and respond immediately to the tug slipping below your field of view or to the strange accelerations which go with this in a "kiting" situation. ).