I like your method of thinking, you'd rather set them up in a better position, while I go for saving my tension to dealing with whichever my opponent is in. Also after Damned Fang you can IAD j.S into a shadow gauge building blockstring, that also builds tension. Also saving up that tension is psychologically better for you since your opponent is going to fear a 22D, and you should get used to adapting a followup to wherever Damned Fang lands (midscreen, corner). That 25% could really save you later on. I suggest you tend to do it when you have full tension or 75% meaning you can afford to position them, it's also a battle of meter-managing.
Also 0:56 here http://www.youtube.com/watch?v=vIUeTMUUsVo .