Decisions, decisions. That is a tough choice!
I prefer to
buy different models/manufacturers while others have several of one model/brand.
With the costs you are looking at, you might want to include the Darwin in your mix.
What I see as nice about the P18500 is choice. You can use it Kicked or not.
Like always, part of the decision is what you want the next
mod to have that the one you have now doesn't.
Smaller size? vs Try VW?
Have fun...