Rich, if I have a choice, I choose to bury 3 or more nodes to have a cutting that is "root rich" and can support any type of vegetative growth. Some cuttings will not produce roots at every node. so by burying at least 2 or more nodes you have a higher chance for success. Now this is my opinion and others may have a different opinion. I do things a little different because of my climate and natural growing conditions. I start all cuttings in gallon pots, high % of pine bark fines, outside in a 8x16 plastic enclosure, no heat, high humidity, tomorrow will be in the low 80s.