Replying to Px12 jib heavy????

alright so i got some px12 jib troublemakers earlier this year and i wanna put em on some invaders right?
so i get them in the mail, and i pick them up and the toe piece is normal and then i pick up the heelpiece and it was like more than 2 pounds....
how much do you think this heavy ass binding is going to affect my skiing 100% park compared to some really light bindings like some Z12s.

and also what jig is needed for them..

and yes ive tried searchbar.