The first time I received an adjustment to bind in Marichyasana C, my back cracked from my tailbone all the way up to the base of my neck. It was an amazing moment, and though I still get a good crack once in a while, the completeness of that spinal readjustment has not been recreated.
I present the present state of my Marichyasanas (just one side of each, so as not to bore you):
I'm still modifying the lotus variations for my knees and only binding to the fingertips in C and D, as you can see. This was taken out of the context of my practice, so I'm not entirely warm and my pants aren't sweaty enough to help with the grip, so the binds are perhaps not as deep as they could be, but this is still a decent representation of where I'm at with these four postures.
I love twists but after the Marichyasanas, it's a relief to do five rounds of Navasana. I think that pretty much sums it up.