When I started Hoya ruthiae over again at the end of 2016, I had discovered net pots which gave me far greater knowledge of when a new plant actually needed to be watered.  I started my meager little cutting in a two inch net pot and not only did it start to root, but started growing stronger right from the get go.  I don’t know if it was the breathe-ability of the pot, or what by I was pleased at the rate of growth.