Look let's longfist to the Max. I've taken some time to compile the following. Enjoy,
Many of the Northern systems do their form on an East-West axis. Long fist reportedly being the 'grand-daddy' also uses this embusen.
If you look at the classical longfist forms you will see how elements from the system were used in later form development.
Yi Lu ChaQuan Classical LongFist
http://www.youtube.com/watch?v=wH5CCqAtcgcEr Lu ChaQuan Classical LongFist
http://www.youtube.com/watch?v=fpWELFWecvMSan Lu ChaQuan Classical LongFist
http://www.youtube.com/watch?v=lOaIi4HB2SMLook at the differences between the contemporary and the classical forms.
ChangQuan - yi - Contemporary
http://www.youtube.com/watch?v=ObiygVWC-1YChangQuan - Er - Contemporary
http://www.youtube.com/watch?v=0xFPWNMaeAQChangQuan - San - Contemporary
http://www.youtube.com/watch?v=zEllGdmG7K8ChangQuan - Si - Contemporary
http://www.youtube.com/watch?v=nS7zs80tcjkYou’ll see some repetition of the classical longfist throughout the following forms.
WuShu-LongFist
http://www.youtube.com/watch?v=bHUq4yGgg94Xiaohong Quan
http://www.youtube.com/watch?v=tU3Cb60oAQ0Lianbu-quan
http://www.youtube.com/watch?v=G-xTb73wB7sErlu Maifu (2nd Ambush)
http://www.youtube.com/watch?v=XFGyGwy38dMShizi-tang Quan
http://www.youtube.com/watch?v=boY5No1LPQoShaolin Quan
http://www.youtube.com/watch?v=GY2Z0IvNNz4Bagua Dandao
http://www.youtube.com/watch?v=1ffUu8TqC-wShaolin taizu changquan
http://www.youtube.com/watch?v=8Ap1Ee9ftPYZhao Changjun - Changquan
http://www.youtube.com/watch?v=F7Ij5NAOmKsThis basic form Gongli-quan (powerfist) was a form I once studied. It was part of the Chin Woo Association basic forms sets. This set also includes Tam Tuie. A student would study them before they branched out into the individual instructors personal style (so all the association members had the same basics).
Huo Yuanjia was the founder of the Chin Woo Association (guess what current movie is about his efforts?) and the style taught a combination of arts - “Because Huo was widely admired as a Chinese national hero, a series of other masters agreed to teach at the school including Eagle Claw master Chen Zizheng, Seven Star Praying Mantis master Luo Guangyu, Xingyi master Geng Xiaguang, and Wu Jianquan, the founder of Wu style Taijiquan. “ from the Winpedia.
Gongli-quan
http://www.youtube.com/watch?v=Zorsx50DhssI’ve found an older Eagle Claw, Mantis and Northern Shaolin Set that I think lets you see the Longfist influence in part, even with their stylistic differences.
eagle claw
http://www.youtube.com/watch?v=umy1NRtVfx8Mantis Taiwan 1964 (1of3)
http://www.youtube.com/watch?v=S5XMIQrvinM&mode=related&search=Northern Shaolin Cross Battle Form
http://www.youtube.com/watch?v=3_ILMRctJQAKungfu Long Fist (Small Cotton Fist)
http://video.google.com/videoplay?docid=-5814774077973210441&q=martial+arts+staff&hl=enRemember too the forms are but a part of each of those systems, extensive two person sets, extensive weapons work (to develop the grip and overall physical ability) and of course sparring practices, all combine for each systems potential.