Here is the latest video showing the progress of the roots forming on all the varieties of cuttings I received from UCDavis this year.  Video

Excellent Video good and sharp, looks like your cuttings are fairing well too.  Actually are you going to leave your cuttings in the plastic cups for 3 months?  With such good root development on that one I figured you'd move it very soon.  Keep the video's coming...

tmc2009
How many times can you re-use the s. moss to root cuttings?
Do you dissinfect the moss between uses or does it really matter?

I used new moss.  I just put the old moss in the garden so its not a total loss.

Excellent video.

Noss -  I root my cuttings the way as tmc2009. I squeeze out the water after moistening  the spaghnum moss. I used fresh moss. I do not put a heavy load of moss over the cuttings. Just enough as a light bed at the bottom and a light bed over them(loose). I air my shoe box every 3 to 4 days. Shoe box is kept in a shaded/dark warm place.