I don't heat style my hair , not even for length checks. It could happen one day if I hit 10 years but even then I highly doubt it. As my hair grows out and not down, I measure my hair by looking back at previous years. The first picture was when I finished doing a serious of little chops after a year. The second is the beginning of my 2nd year, and this third picture is a little bit before my 4th year. I started transitioning in winter of 06, chopped finally in winter of 07.