if im checkraising this turn, its because i think i can induce a bluff and get all in w/ villain drawing close to dead. u r repping such a ridiculously strong range when u checkraise this turn that when you are holding a hand like KQ you have purely a bluff catcher hoping that he thinks u r bluffing and will jam w/ air/some kind of weak draw or call down w/ an even worse bluff catching hand thinking u have nothing. villain has to think u r really FOS already for this play to be any good at all.