The stock spring can be easily replaced with a cut down aleph spring. This strongly improves the reliabilty of the body.
Additionally I have soldered a wire from switch ground to the body ground (not seen in the picture) to avoid an open circuit, caused by lifting the switch pcb from the ground ring=> now it works flawless for all heads and battery types.
Additionally I have soldered a wire from switch ground to the body ground (not seen in the picture) to avoid an open circuit, caused by lifting the switch pcb from the ground ring=> now it works flawless for all heads and battery types.