Wait - why go to single springs? I am still under the impression for the general Q8 buyers, best to have double springs to reduce resistance. Unless there's something I'm not understanding? I don't think we can assume the majority of Q8 buyers will do their own bypass wiring. I'm sure someone somewhere did some published testing of double springs?
RMM quoted here on the Noctigon Meteor: https://budgetlightforum.com/t/-/33137/295
"I have tried a few different solutions, and so far I think that the best is to “double spring” the tailcap by adding a fully collapsible steel spring inside of the beryllium spring. The beryllium spring still conducts most of the current, while the steel spring does most of the heavy lifting."
I'm sure the quality and make-up of the spring makes a big difference, as has been reported on, and tested - djozz's spring tests: https://budgetlightforum.com/t/-/29825