kirbyPractice jumps on ESEA maps that you know you'll use often. Maybe practice the jumps that you won't do all that often but might find yourself doing eventually. Example: jumping from badlands lower lobby door on gray bridge to wall jumping off of the right wall into choke (bomb scenario).
This.
If you only practice jumping on jump maps and never on actual maps, you'll most likely be subpar at jumping in-game. You need a healthy mix of the two.