Hi;
In terms of starting light it make total sense but I would even recommend using Fabio’s TRM
Here's how you can determine your 1RM based on your training with a lighter weight, plus what a “1RM” really is and the best way to test it.
www.strongfirst.com
Basically it is the Pull Up that you can do with best technique.
I can’t emphasize more on technique when it comes to Pull Ups. I will be very straight forward. It is quite difficult for some one with 3-5 pull up RM to have indeed even 1 TRM. Using full dead hang at bottom, and more challenging full scapular retraction at the top. If you aim perfection, you would need to hang and work on your scapular retractions your grip strength etc. Pull up is one of those exercises that is an inch wide but a mile deep.
My PR is 7 in pull ups. But I have stopped going after count ( although doing my best to have full hang and retraction at top) working on scapular retraction etc.
Fighter Pull Up program in my opinion is a very advanced program. (An intermediate person can easily use bad form chasing numbers. I saw a youtube video on this. A guy who was much stronger than me doing program and he did not like it etc. His form was bad he was hunching at top. Although he is a strong guy he messed the program and I think he now has even worse pull ups.
I am now working on three things to increase pull up. 1) Dead hang time. 2) Scapular retraction up down at the bottom hang. 3) Top scapular retracted hold.
How many seconds you can hold flexed Scapular retracted chest fully open bar easily below chin or touching chest?