I did try mounting the coil in the top, then in diagonal. Mounting it diagonally allows you to keep the coil a little lower and that seems to have juuust a little bit more flavor, but not something to write home about. Honestly, I wasn't crazy about the tank. It is good, but the Alleria surpassed it in flavor. Comparing size, the dotmod rta has better flavor than the goblin -in dual coil. The Kf v3 mini plus is a better mtl single coil tank - flavor and built. The tobeco super mini rta is a better flavor dual coil tank that could also work as a loose mtl tank. To give you an idea of what I'm using right now -and for the last few months- Alleria on a G2, Alleria on Slice, Petri rta on VF DNA133 , Tobeco super mini rta on a VF Classic. The kf mini v3 v1.5 on a Pico. The kf mini v3 plus (2 of them) as backup on whatever mod I have handy.
Sadly, the goblin mini v3 has fixed some problems (the wet bottom syndrome ) has added the optional single coil deck but in my opinion has lost some of the crispy flavor it had in the first model. I'm still planning on trying different coils with it, but for now it is on the back burner, next to the 2 Merlins. I'm planning on buying a couple more Allerias, I really like them.