Welcome! I love the reverse Tux look of your REO.
A stock REO will have trouble going below .5ohm. The stock spring will start to sag over time, your stock button could melt/deform, and there is resistance in the stock firing pin and spring which can cause a pretty drastic voltage drop at super subohm. Rob is coming out with a subohm kit, that will address these issues. With an upgraded firing pin, upgraded spring (or fuse mod), and a teflon button you should be good to go. There are threads on here where us sub ohmers have modded our REO's in some pretty cool ways, but at this point, if I were you I would just wait for Robs official kit. You may also want to Slightly enlarge your stock air hole, depending on your preference. Mine is slightly smaller than 1/16 and its a whole world different than stock.
That being said, .2ohm is very low, and your dancing on the line between a hard short. I wouldn't recommend going below .3. I am sure that you will find with the upgrade kit that .3 will be very intense.
