I get what you're saying. Earlier I was looking at some doggy wicking videos on youtube and im noticing that a lot of them have way more room for the wick. I ordered mine because it has more air and its top fill. I forget who it was but the person that recommended that one to me didn't say anything about the wick space I just figured they were all the same. I gotta butcher the freakin thing to make it fit. Maybe I could try a different one that has more space.Re: Doggie Style - The 2K16 and the 2K18 have a little different bases...below the desk. The '18 is closed below the deck and the '16 open if I'm interpreting some photos correctly. That 'may' allow for a lot more spreading of the wicks. I haven't got an '18, so I'm not certain. I'm not certain that the notches in the deck are the same.
I mentioned the Fresia as I took a look at it after your post mentioning it. It is more like the '16 below the deck, I believe. As far as performance, I haven't a clue other than my '16 seems to work well. The Fresia 'looks a bit like' the '16 Doggie other than the Doggies bell goes all the way down to the base with a bit of a gap on opposing sides to allow the eliquid in. Up top there are some obvious differences at the posts.
I just use plain ol' 316L for coils and unflavored 50mg/ml nicotine in full VG base.
We getting a bit away from the OP.
The wick and coil are setting in on the Hussar Project X now. At 25 watts on the X and 15 on the Doggie, they are presently closer in TH with some taste/mouth feel differences. The X has about 2x the coil resistance and 2x wicking in it...trying to fill up the space for max coil/wick to air ratio. It takes higher wattage to push that wad.
I got my project x coiled and wicked perfectly right now. Your right the throat hit is definitely better when I bump it up to 25 watts. It still takes more effort though than I'd like to try to take long hits to get fully satisfied which im disappointed in. The Fresia hits like a mac truck lol.