ok, i'll be leaving in a few to do my surveillance......
Mission Impossible theme song playing as i walk out the door........

They look great. I would not do a thing, wait until they show signs of die back, it will happen. as the plant has to take the juice up to their tips without their momma... it helps if you cover the pots with aluminum foil, and tie a plastic bag on the entire thing, closing just enough for the tree to stick out.  then lean the pots side ways - this will help the stems stay alive.  

here are mine:

the two laying down are suckers that are about to sprout, there was no die back on these, as I had them laying down and had them in the dark for a while. I just put them by the window and little leaf nodes are appearing.  the one in diagonal (yellowish) you can see the die back - it was standing up.

the last one, far from the camera, inside a coffee cup with coffee lid, so dirty don't fall out, on the corner is laying down, you can see the tip is about to leaf. 

I put it in a slant, it was down, and each couple of days I am leaning it up... since I layed it down, it stops the die back (not sure if it would stop anyway or was the leaning that did it)  I tie black plastic round them, to get  their bottoms warmer when the sun comes out, which is almost never here at this time  I have a large eave, so little sun light comes through.  A piece of styrfoam makes a good pillow to lean the pots on. 

My first suckers died to the root, when I planted them as 'regular plants'. those that I planted leaning survived. hope this helps you keep your babies alive... keep them warm but without direct light.  Indoor air is also dry, misting or wrap them in moist newspaper while they are in process of rooting on their own.   Best luck to you...