Actually, the splinters you are talking about have absolutely nothing to do with real faith and a real relationship with Jesus, and all to do with interchurch and intrachurch spats. And this is my entire point, none of those splinters deserves equality with the miracle of being born again. No transition does. And if these details are what you remember from Lewis' work, then you sadly missed the main goal of Lewis' life work.
I have to work now, but will take the time this evening to explain why you’re wrong.