See, I knew it - they're all talking about micro-coils and stuff like that.
Like the OP, I have an igo-L. And, like him, I'm not overly impressed so far. I bought it not for taste (I'm perfectly happy with my vivi novas) but because I wanted to be able to change out flavors relatively easily (I DIY). I bought 50 pre-wrapped coils (2.0 ohms). Are these not the right thing to use on this dripper?
PS - someone mentioned that the airhole looked too big. I agree, find it too 'airy' for my taste. But a number of the reviews mentioned it being too tight and they drilled it out - no one mentioned it being too big.
Argghhhh!
I've seen those pre-wrapped coils, and I know that some people use them... but, I wouldn't. For one thing, in a "standard" coil, you really should have more than a single piece of silica inside the coil, you want a juicy wick, so when I used silica I usually folded the silica over twice so there were three strands within the coil. I don't use silica anymore because I can taste it and I don't like it.
As for the air hole, many vapers have large holes in their rba's, usually those that go for the massive clouds. It's a very different type of build and IMHO you're not getting much but vapor, the flavor and TH would be lacking because it's so airy. On my igo-l I took a file and widened the stock 1mm air hole just a tad, so it's maybe 1.2-1.3mm now and it's great, there's a little resistance when I draw on it, but it's wide enough to get more than a mouthful of vapor.
Micro coils are a bit of a different beast, using cotton and the micro, and a dripper with a well like the igo-l I can use minimal wick and about 5 drops and get a good 5-10 vapes. The micro coil is efficient at vaporizing the juice held in the wick within the coil, and once you cut the power the cotton soaks up more very quickly. A puff on a micro coil dripper is usually only 2-3 seconds or less, versus the 5-10 second draw on a carto/clearo.
P.S. take a look at that first pic, that sucker has been drilled out, it's definitely not stock.