Can't speak for the other bottom feeder mods, but the REO does not have that problem. In my use, after almost 4 weeks of constant, very heavy vaping, I have yet to have any problems. No leaks, No drips, No spills. Just great vaping with whatever Atty or juice I throw at it. Any voltage. One solid, carefree Mod, that also just happens to look fantastic - IMHO.
GB