Thanks Ray, sent you PM and here is a link to where the X7 spacer came from.
Low-cost copper pills, spacers, optics, drop-ins. Custom parts from copper and aluminium for flaslights, lasers, sabers.
Good prices and pretty fast shipping from Russia.
Thanks Tom E.
Tried messing with this K2 driver earlier again today. It is beyond me to get it Fet with the battery indicators functional. Thought of powering driver just to keep the lights but every 4 presses it will kill the lights as the original driver powers off. Waste of current to just have that and a piggy backed Fet. Will try to use the LEDs as just the off time lighted SW button. Each LED on the K2 SW does have its own resistor and will utilize them or swap resistors into that space as needed for color choice.
Got the new Fet+1 saved in cart from MtnE with Standard Electronic Switch Firmware and LVP.