Gorgi, I agree. That's why I roll down the top. And I find that the top starts to rot if it's too wet. I leave 1/4 to 1/8" out of the moss but roll the bag down even with the top - just enough moisture (humidity, really), not too much. As for container, I use whatever I have to. 99% of the time I use standard gallon pots that I get from the recycling bin at local nurseries with their blessing. I had one root at the top and produce a shoot half way down. That was trouble :) I got a taller, wider container and and filled it with soil on the diagonal - the pot was resting on its side on a slanted surface so the soil level was horizontal with respect to gravity but diagonal with respect to the pot. I put the cutting in resting on the soil with the roots at the top facing and inside the soil, put in soil in the rest of the bottom up to the shoot, then put perlite over the bottom of the shoot, leaving all the protoleaves out. I watered carefully, put a CFL 5000K 100W at the top of the pot so the shoot would grow toward it instead of vertical toward the side of the pot. As the shoot grew I filled in with soil and perlite. Eventually I could stand the pot up and all was normal.