I started watching Ajay Tokas' kapotasana video and he just managed to take his toes. I thought, that's great, he may be the floatiest of the floatiest but still working on his backbends and happy to share that.
Then of course the examples kept coming, toes, heels, the noodle.... and then this : )
Here's the video
And just to add one more of my own, long stays, here 25 breaths.
Now I have to say that due to lack of practice ( year and a half focusing on Krishnamacharya's approach to Primary group asana) I've lost my kapo somewhat, taking my toes at best yesterday as in Ajay's first example in the video. Still, it'll come back ( as it has before) and staying wherever you are for more breaths is always interesting. Not that bothered about calves or even grabbing my ankles any more but heels would be nice, gives something to hold on to and draw in and settle.
The above is part of Pattabhi Jois' 'Rishi Series approach, 25-50 breaths in an asana, 10 actually. david Williams had asked him what to do after completing Advanced series.
See this post
A link to Ajay at his floatiest