Baddha Konasana question

Hello, I have recently switched over from David Swenson’s Ashtanga DVD to Richard Freemans. I want to ask about one difference in Baddha Konasana. David Swenson says to “open the feet like a book” but Richard doesn’t say that.
Can you tell me the difference and/or give me your opinion on opening the feet this way. Does it make the pose more effective? Does it even make a difference at all?

Thanks

The difference is that one opens the ankles and is a variation of the other.

Can anyone help me to find which asana is said to be Parivritta Kapada Sirasasan…

I tried many search engines but not able to find it…

Anyone please help me in finding it…

Perhaps you are referring to

Parivrtta ekapada sirsasana

and can find that pose using the google images search engine?

gordon