there have been threads on the subject of which jumper is best and hands down it's always been Lomax 1st and Jacoby as a close 2nd, then all the others take their place well back.
as for the Predator Air 2, I have no personal experience but can tell you the 1st generation Predator Air didn't have enough weight to do the job well. For a jump cue to do it's job well, it has to be at least as heavy as a cue ball. The gen 1 pred was not. Hopefully, gen 2 is.
I wouldn't rely too much on videos and pros doing sick demos of any brand because, chances are, they have such a good technique that the brand doesn't matter so much.
If you are looking to jump on the cheapo, J&J will get you airborne very nicely for under $40.
The best in the biz: Lomax
Close 2nd plus a groove for darting: Jacoby
all imho, except the previous thread results which I've referenced accurately.
best,
brian kc