Ok sorry it took me so long to chime in! So Silk Reeling is honestly Chen family body mechanics. In Yang family, its more like Peng, or becoming a ball. In Chen family, it is silk reeling. When you perform Silk Reeling properly, you are integrating your legs to push and pull into each movement. I will try to make an instructional video soon to help out with this for you. But the concept is, the structure, and the movement style is the same throughout everything you do in Chen style. Forms, weapons, combat, its all Chan Su Jin.