i got a new Zenesis standard last week and the switch was touchy.when i pressed it and wiggled it a bit i would get inconsistent firing.i changed the contact screw to a 10-24x1/2 inch size with a flathead screw from E-bay of the same dimensions(10-24x1/2 inch)and the flathead made all the difference.the screw that was used had a domed head,so it wasn't making contact properly.i used a screw which is stainless steel philips but you can also use a brass screw with a flathead screwdriver drive and it would probably work even better.i also put a spacer magnet in on the battery to take up the space that is in there.i'm looking to see if the Efest 18650 imr 2250mah battery will fit any better.if anybody knows if the efest would fit it, would be nice to know.i know the efest is a little wider than usual,about 18.5mm.
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