To some people chin up is easier.

But i trained alot pull ups.

...i am fat now. But still can do 6/ 10 times.

Maybe 30 per session. Or maybe less. See form.

Fcuk.. i m fat.

My pt taught me last time .. if u cant pull urself up. Just start slowly.

Grip and dont let go.. hang .

Then slowly put a chair . And train slowly. Or ask support.

U need build slowly. No fast way. But after u got foundation.  U will never lose it.or easy to regain.

When i first learn i was 70kg.

Now i m 85kg.. chubby. But still can.

If all you want is a nice big back, there's no need to do pull ups.

Your traps don't attach to your humerus at all. It attaches to your clavicle and scapula and mainly performs scapular movements.

Your lats insert on the humerus but to efficiently contract them to their origin at the base of your spine you need to work each side independently.

just do all. rotate them. but need to feel your back working. if not, wont see back growing.

100 pull up a day.

Dead hang x 20 per set x 5 set in 1 hour.