Must be doing something wrong with a badaboom

spent a couple of hours farming for a low level badaboom (level 29) for my OP7 Sal just to have some fun with it, i must be doing something wrong cuz im not seeing anything like the videos ive watched where they get all this crazy height from the launcher

Do you jump and use two Badabooms at the same time? Do you throw two COM-less grenades before you jump (when they hit the ground the second time) and use both Badabooms?