As Feng
Punishment:
The pushback on Paul's i12 shoulder prevents Feng Wei hopkicking it. Feng is encouraged to step-guard to block B1 and evade shoulder, where possible. Shoulder can also be kenpo'd in many to all situations.
Back Kenpo:
Hit by Paul's B1 at most spacings, which also covers DB1. Also Paul's F1+4 shoulder. Can evade most other things.