I am not sure I follow what you are saying. Once the spring is "flat" then obviously it won't assemble correctly. If done correctly, there is no reason the spider spring shouldn't last for ages. I only used one in my 3 years of racing the RS.
The attachment is an excerpt from my race manual pertaining to the factory slipper clutch, including a spider spring min. height check. Most slipper clutches that use a spider spring are very similar.
Well, I can't attach it as the file size limits seem a bit restrictive.
