like most other styles of Songshan Shaolin kung fu, as already said in this thread and other threads, a short form with cool movements is coupled with a longer form which consists of 3 roads (better be called 3 sections) with many repetitions, where the repetitions convey the core concepts and indicate the core maneuvers. this is the case with Qi Xing and Chang Hu Xin yi Men quan. as other forum users said in other threads, the shorter forms in such couplings usually have their origins in Deng Feng area, while the longer (3-road) forms come from Shaolin. i don’t know, if this holds in case of Qi Xing & Chang Hu Xin yi Men quans as well?
besides the video clips spread over the internet, there are some authoritative resources which i list those of them we have access to so far:
1. Shi Yong Zhi’s instructional video (road 1 of 3)
2. Wang Zongren’s instructional video (roads 1-2 of 3)
3. Shi De Ci’s instructional video (he calls it Hu Xin quan) (all 3 roads)
4. Liu Haike’s (from Tagou school) instructional video (all 3 roads)
5. Shi Deqi’s instructional video (all 3 roads)
6. Abbot Yongxin’s Chang Hu Xin Yi Men Quan Pu (all 3 roads)
7. Deqian’s Encyclopedia of Shaolin Martial Arts, vol.2/4, page 488 (all 3 roads)
discussion of the resources:
Yong Zhi’s video is only the 1st section/road, and Zongren’s the first 2 sections/roads of the 3. they are OK and have no problem.
Deci and Liu demonstrate the whole 3-road form. they are identical and have exactly the same technical content (but of course with difference in their body mechanics); but they–Deci at 3:10 and Liu at 0:59–miss a repetition of a short 2~3 postures sequence in the middle of the 2nd road (Liu Haike teaches the form in 6 sections, the first 2 sections of 6 are exactly the first 1 road of 3, the next 2 sections together with 2 postures of the 5th section constitute the 2nd road till the point demonstrated by Zongren, except Zongren doesn’t miss those few postures.).
Deqi’s, Yongxin’s, and the Encyclopedia’s forms are complete, but there are differences between the way they perform:
in seconds 1:27~1:31 of his video, Deqi has the few postures that Deci and Liu do not repeat (they don’t miss them, because those missed postures together with a sequence of movements that come after them are exactly repeated later in the form, so they don’t miss those postures, but simply do not repeat them, because they come later in the form.). but he performs these few postures to a direction that makes the direction of the rest of the form opposite, so that at the end Deqi is standing back to the camera.
Encylopedia (in figs 45~47) and Yongxin (in figs 36~38-3), like Zongren, perform those postures to the direction opposite to Deqi’s, so that the rest of the form keeps its direction and at the end the performer stands face to the camera. by the way, Yongxin’s form seems to be different from other resources in its figs 67-1~69-1 (the 2 hold the lion’s head in golden rooster stands on one leg stance, or whatever those postures are called) and also its fig 78 (striding a tiger, fists guard ear and the opposite knee, or whatever else it’s called) is to the opposite direction.
so all the versions are good and all can be considered definitive. by the way, any resource has its own style of body mechanics and joining between the movements.