I stretch for 16wks at a time and during that time I try to keep up w/my same routine, which is pooing 2x's a wk. and DC w/every poo. I tried pooing once a wk in the beginning of the summer and my hair just doesn't like that, it stays moisturized w/my normal routine. I like free flowing hair weather it's pinned up or down and if I go more than 4 days w/o DC I find that I have to then put moisturizers in my hair which eventually becomes product overload for my hair.
My advice is to try it and see if works, but at the first sign of disagreement from your hair go back to what works.