Why?
The goliath has less air, larger juice channels, a smaller deck, and much lower juice capacity. And it's bigger. Seems to me like more work for less return.
During the day I vape a Kayfun V4 with the air extension kit which takes air up to 2.7mm. It's not the easiest of lung hits but its doable. At night, with a pint or 3 of cider down my neck I want a totally open draw with a massive lung hit. I get this from the Goblin. If this means I have to put up with the probs of the goblin then so be it.
At the moment I have an Evil Eye sat on my desk for the last week, but want to master the goblin before I go to it (and it doesn't have enough air) - seems no point to me to chase atty after atty for the perfect vape if I can't even master the goblin. Loads of people have a perfectly functioning goblin with no leaks so I don't see why I can't be amongst their number.
It doesn't bother me that my goblin won't vape 80/20 - just another variable to factor into the equation.
Ideally, yes - I want the reliability and versatility of the kayfun V4 coupled with the performance of the Goblin. But the goliath ain't going to give me that.
I'm guessing he suggested it for the juice flow control, which is a good suggestion for higher pg I would think. I'm still using higher VG in mine, so I have the juice flow wide open, I would think closing it off a bit would help for high PG.
FWIW, comparing the goblin and goliath side by side the difference in airflow is minimal, actually seems a bit airier on the goliath even though you wouldn't think so. With nearly the same build in both, 26g 2mm ID around .4ohm, the draw seems easier on the goliath. The slightly smaller air holes on the deck of the goliath seems to be negated by the larger chimney if that makes sense.
It has the same juice capacity as the goblin in its shorter mode, but is quite a bit taller, that is definitely true.
It is a lot easier to fill though with the juice flow, and easier to re wick if needed. The ease of filling with probably replace the goblin for me as my work RTA.
Build quality on mine is also better than both of my goblins. Goblin in short mode on a SMPL will still be my go to out n about setup for quick 2-3 hour trips.
I'm not saying you should run out and get the goliath if you have no interest in it, but it is definitely an airy lung hitting cloud chucking beast, same as the goblin. I like them both, a lot, but if I had to only have one I think I would choose the goliath. I really hate bottom fill, lol.
--
Edit, after trying it a bit more on my 2nd goblin on that one the draw is slightly airier than my goliath, so it would seem its just the build that is in the other goblin that made it appear tighter, maybe that one has 2.4mm ID coils and not 2.0mm ID coils like I had thought. Either way, the difference is minimal between the two.