^^^ Yes, I relaxed my nape first with Mizani, rinsed, neutralized. I made sure to protect the part that I was going to relax with Phyto. I protected it with a mixture of Joico Cuticle Sealer, Vaseline, Mizani Base and Neutralizing shampoo.
Later, I relaxed the rest of my hair with Phyto. So far so good.
I will post a pic and a review in the relaxed/texlaxed support thread in a couple of hours.