Calisthenics Unity

Hello, for level 2 I have the following question:

1. How long should the pull up holds be? Reps/time says 1-4 but what is this? Minutes?

Thanks

Just so you can feel it starts to hurt! Like not maximum but when you start to feel the acid in your muscles. The reason i haven't made a specifik time for the holds is because we are all different and some will be able to hold it for a certain time, and some will hold it for another time :)

Thanks, that's clear, I could do 20s max... I figured you would eventually progress up to 60s.