Unfortunately, the map referenced here wasn't updated for the change in player height. It's not very functional these days. However, Memphis created the amazing "Parkourstation" for learning Reflex movement, and I highly recommend newcomers check it out! It's on the workshop, so just call a vote to change the map, set it to race mode, and search for parkourstation.
http://forums.reflexarena.com/index.php?/topic/111-parkour-station-movement-tutorial-039/
My User Interface:
http://www.reflexfps.net/forums/index.php?/topic/2752-kovaaks-compilation-hud-updated-102415-for-ctf/
Addenda:
1) For Quake 1 style bunny hopping, if you turn too fast in air you will lose speed. The limited rate of turn is based on your speed - the faster you are going, the more limited you are.
