So I just bought a rig V2/roughneck v2 literally one week ago. I'm no vaping efficionado or anything but I'm having an issue that is pissing me off to no end. I picked this mod up because of its quality and durability reviews. This mod fired instantly with nice strong consistent hits for 6 days. Day 7 with a fresh battery at 4.2V and a .13 build on it, takes a solid second or two of holding the button for any vapor production. Changed the coils, checked all the screws, tried 3 different fully charged batteries with no luck. Since I am still awaiting a response from VAMP, anyone on here have any input?