I only have the Z1 (that you don't take off) one coat of Z5 and 2 coats of Z2 on my SVT. So, it's not a lot of work to reapply, but I'm still not willing to do it.
Honestly, the only thing that matters is that each user is happy with tghe product they use. I'm happy with mine and have no desire to change. I am, however, interested in how it looks compared to the other biggies. I think Roger has a similar view. It's just in fun.