How long before you need to replace the rubber tailcap clickie and O-rings on a Fenix

[LED Flashlights.]

I was just wondering.

 

[Yapo]

I have yet to replace any of mine...even the ones on my L1P which i heard had a tendency of breaking when you put the battery in the 1st time as they werent lubed at the factory. Although the one on my P1D CE has become harder than it was originally...i never really use it near water so its not an issue to replace

 

[sol-leks]

I'm sure it all really depends on how you use it and especially the environments you expose it to.