No time ATM , Took a sicky from school , bit of flue or something ? But will be on the cards that's for sure
Got a bit of stuff in the mail today .. Its a bit of a struggle to post , when you dont feel so great .
Sorry to hear that. Hope you feel better soon. 
I was wondering about a clicky swap myself. I hope you feel better.
Look, this is off the wall but could it be that its not the switch at all? The driver looks to be a press fit only. No solder or if there is solder then its only a microscopic amount in the driver/pill gap. (I wonder if all KE5's are unsoldered?) Anyway, could it be that you pressed harder or at an angle with your test lead causing better driver/pill contact than the tailspring does?
I bought mine from redlog on ebay for like $25. I just bought my son one as well. That is still my favorite flashlight I own with maybe the exception of the TR-1200 which is the better thrower. Mine burns at about 3.5 amps with Trustfire flame 18650 fully charged.
Don't know how many lumens it truly puts out, but I wouldn't doubt that it's above 700 lumens very easily.
Cant hurt to put some solder in there , will see as time permits , maybe Wednesday .
Here's what my brass pill looks like.
Mine will throw a good 400yds. That's about 360yds or so to that white barn with a vehicle parked in front of it.
The vehicle that is lit up at the end of the beam and you can see a white barn if you look.
Those poles are about 100yds or maybe 110yds apart. I just stepped it off to the barn from where I took that photo from and I got right at 440yds. Take off the 40yds for my discrepency and I would bet money it's 400yds almost exactly. But I do have a 200ft tape measure I guess I could tape measure the distance.
thinking about ordering one of these. how on par to the solarforce lights would you say the threads of this light are? bad threads are my pet peeve. i can handle scratches, uneven finish, but if the threads look like they were cut with a pipe threader from a discount tool store, i can't handle it.
Buy that light from redlog on ebay and you should be tickled.
looks like you have a different driver than the one I have (Same as olds). I also get the same tailcap readings as old. At 3.5A it must get hot fast.
Is your soldered like ILIKEFLASHLIGHTS's is or is it unsoldered like old's?
I put some solder on mine = no difference .
That's a shame. Back to the drawing board (pun intended...lol).
It looks like the Keygos is also a lottery, the driver on mine is the green one not Black.
I Just swapped a Neutral XML on mine and will replace the driver with the KD 2.8A driver. This light is really putting out a tight hot spot equivalent to my X9 @ 1meter. Will be comparing both lights once I replaced the KE5 with the KD driver.
Ok I just charged my Trustfire battery to fully charged and took a tailcap reading. It started at 3.55 amps and tapered down to 3.05 amps and stopped. Maybe mine is just hotter. I don't know but I think this one puts out some lumens.