Fa jing in the Cheng Fu lineage, at least as taught by his son Yang Sau Cheung is not in the large frame form. This is because the large frame is designed as a beginner form to stretch and strengthen.
Fa jing is practiced in solos drills, individual postures taken from the form and drilled explosively. It is also present in the fast set (long boxing) which is a fast/slow set and the old Yang from (which is different from Erle's). . There is also the small frame form, all done at speed. The broadsword is also practiced at speed.
FJ is also developed through staff drills and dynamic push hands.
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