Hello, l have decided to install the mini locks using the interlock method from ends to root, like sisterlocks. My question is should I do it on stretched hair or shrunken hair. I was thinking to lightly flat iron the hair frist so that my locs will be long. My natural hair has a lot of shrinkage. So will straightening my hair allow for the locs to be longer, or would it not matter? My stretched hair is about arm pit length.