Check out episode 7 for more information on why you should be doing maximal output training for all the fundamental movements in parkour.
Try to do 8 – 10 max output kongs on to mats or other soft surfaces. Then move on to a dive kong or kong precision that represents 80 – 90% of your ability and practice it for an additional 5 – 10 reps.
To get the most out of this make sure you put as much power as possible in to your max output kong. The technical set up afterwards should be submaximal enough that you can add other techniques and create a line/combo out of it.
Try this and let me know in the comments if it helped!