I've had the SSL kit on my 4/4 since April 2013, soon after it first came out. It transformed the front end of my car. Wild horses on their bended knees wouldn't persuade me to go back to the original setup.
I assume you have hardchrome king pins fitted? If not, then it's an absolute must in my view, and as you're stripping the front end anyway, it's no extra effort.
