I've been researching Hong Quan and have found that there are several style named this.

- There is a Tang Dynasty era Hong Quan practiced by their military along with a type of Pao Chui. Sometimes this style is called Long Fist Tong Bei, but it is not related to Qi or Shi Tong Bei.
- There is a Hong Quan that was practiced all along the Yellow River that was derived from the 6 Step Boxing set (which is also mentioned in General Qi Chi's famous book).
-There is Shanxi Hong Quan
-There is Denfang village Hong Quan
- There is Shaolin Hong Quan (Xiao, Da, and Lao Hong Quan sets) that comes from Zhao Kwang Yin.
- There is Shaolin Hong Quan sets that are from 1200s that come from Li Sou (of bai Yi Feng and Jue Yuan fame).
- There is Louyang Hong Quan
- There is Shandong Cha Quan system's Hong Quan
- There is Shandong Shaolin Hong Quan
- There is Shandong Ming Tai Tzu Hong Quan done by Ming Dynasty military (composed of sets named Xiao Hong, Da Hong, and Tiger Claw).

10 different Hong Quan stlyes. They are all different from each other and also there has been some interaction between these depending on the lineage.

Next, can you read Chinese? If so, please read these articles on Song and Ming Tai TZu Hong Quan,
They are all by that researcher, tell me what you think.

http://www.wushu2008.cn/viewthread.p...a=page%3D4
http://www.tanglangquan.net/Html/Art...102180940.html
http://www.tanglangquan.net/Html/Art...102181121.html
http://www.tanglangquan.net/Html/Art...102181332.html
http://www.tanglangquan.net/Html/Art...102181643.html

http://www.wulinzhi.com/other-chinese-martial-arts/2494