When to learn butterfly pull ups?

Not Until you have Developed
SEVERAL STRICT PULL UPS

or you will

SCREW up YOUR SHOULDERS

Learn the Gymnastics Kip First
Master It

Get to about 20 pull ups
and only then

start playing around with butterfly pull ups

Even then know butterfly pull ups

will not develop your actual pull ups

and still doing strict and weighed pull ups is very important

Keep your Shoulders Safe PEEPS!

Raul
Vital Fitness Project