I have an eGo w/ the old 650 batteries and a REO mini. I prefer using the mini, but still use the eGo for a second PV to keep from getting used to one flavor. Still trying different vendors, and I've started on a Copper Creek sampler when I noticed the REO seems to bring out the flavor a little more then th eGo. Is this my imagination, or does the equipment you are using change the flavor ? Is this due to voltage ? Any assistance would be appreciated, thanks