Alicia Davon weighs in:

I have been getting a few people asking how Extended Orgasm is differs from OM. There are several differences but the one I was appreciating today is the use of the right hand- the DOer uses it like the bass band playing an instrument! It is used for grounding pressure, delicious strokes on the entroitus with the right thumb, even a nice massage on the sacrum with the fingers! A lovely counterpoint to the strokes on the clitoris 

Alicia Davon