My vtc mini records and displays firing time and fire button presses. That's useful for a few reasons. I'm accumulating a 10 year supply of nic, mods, and rda's in case of government interference. So how many mods do I need so that at least one of them will still be working in 10 years? The puff counter on the vtc mini says I'm pressing the fire button about 650 times a day X 365 days = about 250,000 clicks a year. That's a lot of clicks. Are there any electronics wonks on the forum who have experience with these board mounted buttons or know how they are rated? If the outside limit is half a million clicks then 2 years is the life of the product for my use. If a million clicks is realistic then it's 4 years.