The term "atypical dowsing stance" conjours up amusing images.
I think he meant "a typical", not "atypical". It amused me too when I saw it.
How about these for atypical dowsing stances:
Three-legged dowsing. Handstand dowsing with the rods held between your toes. Cross-legged dowsing. Pogo dowsing.
;o)
typical