I have a kayfun lite clone and a panzer by mcv philipnes mod, Panasonic 18650 battery, the coil is built fine it works on my spare ego perfect , as soon as I attach it to my panzer it doesn't fire, iv adjusted the pins in the mod so they come into contact with the battery, I think the thread on the kayfun is slightly short than usual so it doesn't contact the firing pin.. How can this be fixed it's been driving me mad!!! 

