How to Jump/Throw perfectly ?
Add this bind to your autoexec.cfg file (If you can't find the file, you must create it on \SteamApps\common\Counter-Strike Global Offensive\csgo\cfg\).


alias "+jumpThrow" "+jump; -attack"
alias "-jumpThrow" "-jump"
bind "YOUR_KEY" "+jumpThrow"

Hold mouseleft and press YOUR_KEY to Jump/Throw with a perfect timing !