Apart from the nowadays commonly known and use San Yuan Xian Kong Flying Star lineage, Xian Kong Da Gua, Xian Kong Liu Jue, there is one more renown Xian Kong lineage of the Guang Dong stream which has discovered and mastering an ancient feng shui method named " San Xing Pai Long Jue 廣東玄空 - 三星排龍訣". Nowadays, the "Pai Long Jue" has been integreted with the Flying star method by some Xian Kong masters including the Chung Chou Pai and the Kong zhi Xian Kong Pai, to comprehend the analysis for yin and yang mansions feng shui.
Below is a brief introduction for the Xian Kong lineage and its San Xing Pai Jui. The article was originally written in Chinese by me at some time ago.
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Mr. Choi Min Shan was a reputable feng shui master and TCM master in the China Ching Dynasty. His birth year is unknown but died in the year of 1851. Master Choi was the founder of Guang Dong Pai Xian Kong which was one of the renown 6 lineages of San Yuan Xian Kong feng shui xue pai at the mid-Ching Dynasty period.
蔡岷山先生，清代著名堪輿家，術數家。生年不詳，卒 於公元1851年（咸豐辛亥年）乃清朝中晚期中國最具盛名玄空風水六大派之一廣東派的始祖。 

One of the greatest contributions from Master Choi was, he had broken the mystery of one ancient classical feng shui method "pai Long Jue" described hiddenly in several feng shui literature 《青囊奧語》《青囊序》《天玉經》《都天寶照經》《青囊經》 written in over thousand years ago, howver noone had been successfully to break through it including the founder of Xian Kong Flying Star lineage, Master Shen 沈竹礽 . 
蔡岷山先生其中一極大貢獻是破解了一千多年來，一直被風水界視為莫大天機的排龍立穴訣。這古訣在《青囊奧語》《青囊序》《天玉經》《都天寶照經》《青囊經》 都隱晦而述，一直以來都沒人能悟懂，就連清未另一玄空大家，奠定今天玄空飛星學大師 沈竹礽先生 也未能其意。

Though Master Choi had discovered this "Pai Long Jiu" method, he did not leave any detailed written explanatory for it. Till the modern age time in 1950-60 in Hong Kong, the Master Wu Shi Qing 吳師青 and Master Kong Zhao Sou 孔昭蘇 had done deep study on Choi 's advocated feng shui theory and methodology, thereafter provided it with detailed explanatory notes. Since then, the "Pai Long Jiu" has been known and getting importance in the San Yuan Xian Kong feng shui society and circles.
蔡岷山雖䆁破而披露了此訣，但並未明解。但后經香港近代風水大師 吳師青先生，孔昭蘇先生 （後移居台灣 ）研習蔡氏之學，對此訣進行更詳細的解說，才被世人所認識和重視。

Some said, the Chung Chou Pai Xian Kong Xue Grandmaster Wang Ting Zhi 王亭之 in Hong Kong continued with further studies on the "Pai Long Jiu" after the aforesaid Master Wu and Master Kong, has come to some breakthrough on the understanding and application use for it. So, his efforts has made the "Pai Long Jue" more well-known to the outside world.
據聞, 香港《中州派玄空學》 宗師 香港王亭之先生 續吳孔氏後，更深参透釋意此訣，再使此訣廣流傳天下。 

As per the feng shui literature 《 地理辨正求真 》 wriiten by Master Choi , it could be easily found Mr Choi's seriousness and how much time and efforts on breaking through those mystery poem notes written for the hidden feng shui methodology in those ancient classical literatures 青囊, 天王、都天等經. He was unlike the other feng shui masters at his time, just blindly critized the San He Pai 三合法 for their mis-interpretion on those ancient literature for the feng shui methodology, nor he blindly praised and followed the advocated interpretations of Grandmaster Chiang Dai Xiong for those ancient literatures. Therefore, Master Choi had provided great contributions to San Yuan Xian Kong so as to enable this ancient feng shui methodology "Pai Long Jiu" passing on from thousand years ago to nowadays.
從蔡岷山大師所著的《 地理辨正求真 》可看到他認真研究態度和心血所在, 他意不在扁三合法和盲奉蔣學論, 是用以破解青囊, 天王、都天等經之迷訣, 銳意去貫通為用吧。也因此, 其排龍訣也得流傳至今, 實對三元玄空學有大貢獻。 
Below are the explanatory of Master Wu, Master Kong and Master Wang for the set-up methods of the "Pai Long Jiu":
以下列出吳,孔,王氏的三星排龍訣起例演譯： 

Instead of a direct translation for the below poems of methodoligy , which would not mean anything to everyone here. I would make a summary for more informative way:

As per the last paragraph of the below Chung Chou Xian Kong Xue poem, it has spoken out the purpose of the Pai Long Jue: when selecting land and construction for yin and yang mansions, the facing and sitting direction and position should not be taking randomly without a structural way, the "Pai Long Jue" should be used first according to the onsite mountain dragon and the water mouth llandscape location to identify where are the good prosperous direction and poaitiin for the yin and yang mansion's facing and sitting. This is to ensure the geographical environment landscape as being the early heavenly pre-conditions are ok, prior to the use of flying star (or 9-star) methods as being the late-heavenly conditions for finalisation.

《地學鐵骨秘》：
龍上山山起破軍，向中吉凶細心分，右廉破武貪狼 位，疊疊挨加破左文，破巨祿存星十二，時師此訣未曾聞，師青廣發慈悲念，救世金鍼度與 君。是書緣楊公正教先賢，秘而不宣，後人不解者多矣，故予作此書求合經意，非有異也， 不過補前人未言之隱微，闡先賢秘中之秘云爾。句句揣摩，方得其義，何異千書萬卷乎。
《孔氏玄空寶鑑》：
龍上山山起破軍，破軍向上定乾坤。右廉武破貪狼位，疊疊挨加破左文。破軍祿存星十二，時師此訣未曾聞。有緣洞徹三星訣，陸地 神仙便是君。排龍立穴三星訣(又名都天大卦)為審龍立穴消水之訣法。凡龍合向，向合水之 陰陽宅，必是真龍正結，否則假結。 
《中州派玄空學》：Chung Chou Pai Xian Kong Xue
龍對山山起破軍，破軍順逆兩頭分。右廉破武貪狼位，疊疊挨加破左文。破巨祿存星十二，七凶五吉定乾坤。支兼幹出真龍貴，須從入首認其 真。
擇地營造陰陽二宅者，並非可以任意選取方向，必先用排龍訣，依據其山龍或三叉水 口，審定了吉方位，即斷定此宅之先天本質或本體屬吉，依據其安星(挨星法)及其他設計。 此是甄別宅地首要條件之大秘法，所以有異於一般堪輿風水法則。

In the Pai Long Jue methodology, first is to identify where is the mountain dragon and water mouth locations and into which luopan mountain. The yin and yang classification for the Pai Long Jue 24 moutains is different from the general xian kong luopan and method, it classified the Earthly Branch moutains as yin, the rests are yang. With this yin yang definition to determine the 9 stars flying at clockwise or anti-clockwise to fill into a plate of 12 palaces , where one palace is occupied with 2 luopan mountains. In the Pai Long Jue, the 5 stars 貪狠, 巨門, 武曲, 左輔, 右弼 are defined as good lucky stars for use, whereas the 4 stars 碌存, 文曲, 廉貞, 破軍 are defined as bad lucky stars to avoid.

A sample of "Pai Long Jue" plate is provided below, for a case of the mountain dragon locates at the 辰支 EB is yin so clockwise flying for stars into the respective palace. Here, I am not going further into the foundations, steps, formula and rules for how to practically use it for yin and yan mansions, as it may touch the conflict of interests when such information content are being included in those seminars or workshops or lessions offered to interesting parties and learners.