A strafe-jumping lesson from Hero

I'm probably not the only one that gets utterly frustrated by the maps that populate the XDF servers, since you can finish most of them only with mage-like strafe jumping skills. What is the map's name that you used for the tutorial, I'd like to have a long, wide and straight corridor without (!) pits pillars bumps edges spikes lava to run into, just for practicing strafe jumping. I still can't do it very well, and there's unfortunately really a few maps only where I can concentrate on strafe jumping.

Map
4and (done by d-man).. Can be found in description page too..
Its good to practice and master your strafing level/skill in grid maps (straight pure strafing maps similar to the map that was used in strafejump lesson vid). There is a lot different grid maps. For example line(x) maps are great grid maps as they are offering more challenge.

Can highlight you few maps that you might like or seek for.
Xonotic DeFrag - Join/Run now! - balance changes <- server has such line/grid maps than:
line23
line25
line28
grid2
pornstar-slopin (going down)
kapten_grid

Sincerely Hero~