Day Five - Another great shampoo experience today.After drying I have noticed that this is the first day in this experiment that my hair seems to have some volume - and the tacky limp feel has diminished significantly.The shine is as always. The hypothesis that you need to try a shampoo bar over several days seems to hold water in my experience.(Oh, and I do recommend the vinegar rinse to go along with your daily regimen - I think that I am doing to put my cider vinegar in a plastic squeeze bottle in order to make it easier in the shower.) I have decided that instead of the now redundant reports on how stellar a shampoo bar performs each day - I will only be reporting every few days throughout the remainder of the fourteen day period. Soon, I will post pictures of the shampoo bar I made to sample a lower sf - and when it is ready I will report as to any difference in performance with the lower sf.