Lately, I have been studying and practicing the Sun Style Tai Chi Chuan 73 Competition Form. I have been using instructional videotapes by Paul Lam, Liang Shou-Yu, Jesse Tsao, Men Hui-Feng, Li Cheng-Xiang, and Jiang Jian-Ye to learn the form.
Sun Style Taijiquan is done at a "lively step" pace. The average time for the performance of the form is around 6 minutes for 73 movements.
Complete Performance of Sun Taijiquan International Competition 73 Form
Time Performer Source
5:31 Liang, Shou-Yu Sun Style Taijiquan with Applications, VHS, 1996
5:17 Tsao, Jesse Tai Chi Sun Style Competition Form 73, VHS, 2002
9:22 Jiang, Jian-Ye Sun Sytle Tai Chi Competition Form 73, VHS, 1997
7:30 Lam, Paul Sun Style Tai Chi - 73 Forms, The Competition Form, VHS, 2000
5:42 Men, Hui-Feng Sun Style Tai Chi - 73 Forms, The Competition Form, VHS, 2000
3:52 Li, Cheng-Xiang Sun Style Long Competition Form 73, VCD
My favorite instructional videotape is Sun Style Tai Chi - 73 Forms. The Competition Forms. An instructional videotape by Dr. Paul Lam. Narwee, Australia, East Action Video, 2000. A competition form created by Professor Men Hui Feng of Beijing University based on the Sun style. "This detailed instructional video includes a demonstration of the set by its creator, Professor Men Hui-Feng. Sun style is characterised by its powerful qigong elements, agile steps and flowing movements." VHS, 103 minutes. Contents: Introduction to Tai Chi and the Sun style. Comprehensive instructions. Demonstrations of the complete set by Dr. Paul Lam from front and back views. A demonstration by the creator of the set, Professor Men Hu--Feng. ASIN: B000066G1T."
My webpage on the subject of Sun Style Tai Chi Chuan provides a list of the movements in the Sun Style 73 competition form.