With the original Kick I found the best way to keep a good solid ground is to run a thin wire from the spring on the Reo to the loop at the end of the ground spring on the Kick. I never had a misvape after doing that. Also you don't have to remove any paint from the Reo body. THe wire runs underneath the battery along the back corner. A very thin wire does the job well. I stripped both ends of the wire and just twisted around the springs on both end so it removable for cleaning the Grand.
