Never tried a 3.7V mod, but am considering an ICON (Puresmoker). Since standard Joye 510s are at 3.7V, I wonder what advantages a mod has. The ICON uses (1) 14500 batt (unprotected). What I would hope for (for $100+) is better vapor due to more consistent voltage (less voltage drop), longer batt life, & lighter weight than a larger mods (I now use a 6V occasionally = very heavy). Vapor production is my prime concern. (I do question why they use unprotected batts vs the protected version). Anyone with more mod experience have some thoughts or comparison experience with 3.7V mods & higher?