Welcome dennon.
Why do you *HAVE* to run at 4.8V? (Just because my car's speedometer goes to 140MPH doesn't mean I have to drive my car that fast.) I used a couple of Spinners in the past, and they worked amazingly well with a 1.8-2.1 ohm coil. I never had the need to run upwards of the 4.8V, but more like 3.8-4.2V.
I can't put my hands on a definitive spec, but I believe the Amp limit is about 3A which means the lowest-ohmmed coil you might be able to run would only be about 1.1-1.2 ohms.
If you like using a 3ohm coil, simply turn back the voltage, and you'll be less likely to burn the wick. 3-ohm coils likely use very thin wire (32 or 34g), which when subject to excessive stress of high-voltage/high-current won't last as long.
Take a gander through some of the following:
E-Cigarette Forum - Baditude - Blogs He walks through various terminology, explains a lot of the basics to vaping, and has resources to guide you on your vaping journey.
Good Luck
