A better exchange group of Taekwondo masters?

At present, the authoritative taekwondo master exchange groups in China are:

No. 1 —— [China taekwondo Federation] group number: 69 130858.

The group was founded by the Sixth Normal College of Beijing Sport University and has a black belt. It should be the most authoritative expert exchange group in China at present. 95% of the people in this group are black belts. The administrators are China stunt teacher Wang Wengang, ITF master Ji Lei and the head of the master club. There are three black belt masters in the group, and the teachers in the fourth and fifth paragraphs have incomplete statistics 15. Some of them are members of the national team and the national youth team, mostly from various provinces. However, this group is strict and not easy to enter.

No.2-[China Taekwondo Coaches Association] Group number: 262693 17.

This group was founded by a former national team member and a coach currently coached by the People's Liberation Army. There are hundreds of coaches in China, which should be regarded as a huge team with strong communication level. Suggest the coach to join! Is my answer satisfactory?