The Beijing 24 form was developed from the Yang style. Going down the line, there are small variations from individual to individual who practiced the form. IMMHO It should not have any impact on the human body biologically not physiologically. If one had practiced with a variation to begin with, one can either stay with it or corrected. Why should it be confusing since it was only all cosmetic?This is a perfectly reasonable plan, but be aware that there is a difference between the form and movement logic in the Beijing 24 and the Association’s forms. For instance, although both contain Brush Knee and Twist Step, the arm movements are performed somewhat differently. In the medium and long term, it can be helpful to know different variations of a posture or different styles, but in the short term it can also be confusing.
There is a big difference in cloud hands between the Wu and Yang styles. As a matter of fact, the WU style cloud hands is not even near the Yang style. However, the same health benefit is still can be achieved from both styles.