Stretching

I am 9 weeks post. I am not sure how long i want to stretch. Usually around this time, i have a lot of problems stretching. My new growth is usually dry and brittle by this time, but since adding JBCO (Jamaican black castor oil) it has been very soft, so i am not having a hard time with the new growth, and my hair has over a inch of new growth, which is great, cause i usually have about 1/2 inch by this time. Could it be the JBCO? anyway i am also on a JBCO Challenge on MyHairSistas.  Let's see what happens !!!