Just by chance I found this video from Benny who is kite and foil instructor for www.kitejunkie.com
As you can see he is kiting and teaching in a place where foil board rescue is needed due to stones in lee, so he should have some experience ...
https://kitejunkie.com/slides/slide/kit ... sonic-2-74
check min: 3:19
He is also riding a foil himself, but riding it on the board, so around with two foils. Don't know how he managed to get riding with the foil under is arm, can ask him the next time.
I have done similar, but just once and very long time ago. I reached the position by heaving one foil on the feet and one under my butt started drifting, than riding, than both foils were coming up and as I remember I also managed to get the foil from my butt which I was already holding with one hand by the front strap under my arm ...
But doing this with two carbon foils is a high risk of damaging both, so not sure if i would try it again myself.
Better as already explained, sit on the one with more volume and keep the other at the nose in hand and if needed drift around that way slowly, should also be possible to go upwind this way.
But never ever attach a leach to a foil.
There are several ways this configuration may kill you.