Adding More Pull-ups to Busy Men Conjugate?

Hi bos!
I am currently runing this workout and wonder how to add more pull ups work to this schedule without increase workout time? I’m suck at them and wont increase reps count. Add pull ups between upper me lift?

I’m not a huge fan of adding stuff in the programs I design, especially pull-ups. I suggest doing the program as is and then focusing on your pull-ups for 4-6 weeks after the program.