I have had my Nebula(KR808D-1) for about a week. I have been refilling the cartomizers using the easy method by dripping about 7-11 drops through the battery hole end (not the mouthpiece end) and it seems to be working satisfactory. However, it seems like most people refill the cartomizers by taking off the white mouthpiece and silicone washer and dripping directly onto the foam-like material. My question is what are the benefits to spending the extra time and effort refill the cartomizer using the second method as opposed to the easier method.