I'll be sampling some of GP's juices (VG) after a friend of mine raved about them. I've been a V4L customer exclusively for the past year and am wondering if anyone can compare GP's nic levels to V4L's. I've been using V4L's juices at 18mg (from V4L's scale of 0-36mg). Should I stick with 18mg when ordering from GP? Thanks for any advice.