Sorry this isn't exactly about dna's, but, I've been having a problem with my Drop RDA on my Paranormal 250c. When I put a coil in, and tighten the grubs, the legs always seem to push to the side, and wedge in the corner, which ends up with a bad connection, which puts the mod into temp protect. Any suggestions on how to keep the legs centered, before I start looking for clamp style RDAs?