Chi Sao or Equivalent Technique

[DrunkenMantis]

Greetings to All :

I would like to know if there is Chi Sao ("Sticky Hands") or an equivalent technique in any of the Northern Praying Mantis systems? My primary interest is in Qixing Tang Lang however, I am interested to know whether it exists in any of the Northern Praying Mantis lines, or is it strictly a "Southern" technique?

Thanks