When i went to Shapiro I agreed to cut my hair short, Pamela one of the techs( she is awesome) she said she would cut it shorter, but leave it as long as possible. I actually liked the haircut. I literally pulled this off and people who see me on a regular basis still have no idea. They just thought I got my hair cut. At 7-8 days post op I had stitches in my head but noone had a clue i had this done, i had a big party for my son noone eyes wondered. With saying this I have olive like complextion and reddness didnt seem to be a factor with me. I dont think you could have a huge session 3000 plus without shaving your head, Im not sure where the cut off is that they need to shave, but for some of us shaving our heads and going through a month or 2 of downtime is not possible. I speak a lot in my posts about this being a very emotional roller coaster ride, and now looking back I cant remeber if I had much shockloss or if it was just the grafts shedding. I remember at about a month post op thinking holy crap my hair is thin, but it could have been it was cut a lot shorter, also you get to see your hair with with the grafts in and it looks thicker then they fall out and it looks thinner. so this can play mind games with you, so I really dont know if I had shockloss or not for sure.