I was sort of a vaping pioneer back in 2008-2009, but sadly went back to the real ciggies until recently. I can't believe all the improvements with the cartomizer tanks, clearos, and RBAs that have taken place since then. I've been using mostly EGO Twists, but decided to bust out my old SD MKII last week. I cleaned it up, bought a fresh 18350 battery, and this thing is great with a carto tank! I've got a SVD and a Natural on order, so I can't wait to compare these devices with the SD MKII. The SD MKII is functioning about as well as I can imagine ANYTHING would perform with a carto tank, which makes me wonder, "have all the REAL improvements in e-cig technology over the past several years been with juice delivery systems, or should I prepare to be blown away by the newer devices?" I've been pleasantly surprised with how well I've stayed away from the ciggies since around Christmas, and I'd been interested to hear what I should expect when my new devices finally arrive at my door. Please tell me what your experiences have been (so I'll have a diversion while awaiting my vapemail). 
