I myself purchased 4 ecigs before my first mod. 2- 510's, 402,403 and an 801. Even with a pretty good understanding of ohms, volts, and mAh's I feel the 2 years with these prepared me for big battery mods. I have 6 Mods from 3.7 high Mahs, 5 volt cr123 x2 and a 7.4 V with a resistor and have made several box mods from snus tins to copper pipe and hardwoods. I myself reccomend trying a manual 3.7 V like a 501 or 801 first. When you purchase your first tube, box and or manual mod, you will enjoy the extended battery life, the ability to utilize low resintance cartomizers and juice feeder systems, and the freedom to try different battery chemistries and mAh ratings. All in all I would say at least try one or two "stock" ecigs and you will appreciate your first Mod that much more! Rich...