I've been an avid Zaino user for about 2 years, now. Z2 Pro has been my LSP of choice, along with Z6 and Z8. I Z2 the car (2002 Honda Accord) on average, every 2 months. The paint looks great and beads water like crazy. Over the past year or so, I've noticed water spot etching on all of the horizontal surfaces. After doing a little research here I discovered that Zaino doesn't "protect" that well. I'm very disappointed because I really loved this product. I'm considering 845 as my new LSP but I'm still concerned about the use of Z8. With Z8 on top of 845 will it still be susceptible to etching. I have to do something soon because I just noticed etching on my new car, also.