Does anybody use custom PB?

I honestly wanted to so bad but because I cant set audibles I feel like its pointless. If I cant adjust to what my opponent is doing I feel like its a waste..Figured I ask you guys what your opinions are.|||I'm using them. I'm just trying my best to practice as much as I can to get used to where all the formations are and stuff. It's really confusing, but IMHO it's worth it having all the formations you want in the long run.|||

I honestly wanted to so bad but because I cant set audibles I feel like its pointless. If I cant adjust to what my opponent is doing I feel like its a waste..Figured I ask you guys what your opinions are.

still in the lab with it. the problem with books is that somehow gameplan is interspersed with custom playbooks.

i was able to add a formation not in cowboys playbook and everything worked fine and was able to actually lay it out in the order I want. Gonna work on it this weekend when i get some time.