it's the same as Kat, they are always in the air, what I always try to do is to stand guarding until they fall so I can grab them and win AP from that lol
well, in the case of Kat, Jak is just simple
If you are able to grab a jak then they probably not that good. Its common for me to never get grabbed in a game at all and i used him for less than 24 hours. What seperates good jaks from the rest is that the good jaks use the mobility to actually get somewhere rather than to just spam it.
If you wanna get better, then you need to play with players who are better than you.
Thats why 80% of my psasbr friends are black belts, playing with them makes me learn new tactics and ways to defend against the worst this game has to offer.
you should try fighting m-pyre jak is insane