I'm fairly convinced that you are correct that some
tanks just make for better flavor. And I'm going to take the guesswork out of it by talking about subohm
tanks that all take the GT cores.
There are at least 10 tanks that take those coils (they're the baby beast coils basically) and I have five different tanks that take these coils cuz they're the only sub coil that I really enjoy. And the difference that I get with the same factory made clone coil out of the same box is noticeable. The only thing different is a slight variation in the tank.
I have the Cerberus tank I have the vaporesso Cascade and the Cascade baby as well as this other tank that I don't even think has a name that came with The wotofo Flux mod And also one of the Asmodus tanks that take baby beast coils and I'm telling you they are not all created equal. The one that has the best flavor with the exact same carbon copy coil is actually the unnamed wotofo flux tank lol The asmodus one you're not getting any flavor out of these coils in that tank You might as well not bother. The Cerberus is the second in line and then the actual vaporesso tanks are fine too. They're in the middle. But this is the exact same coil with no user error allowed because it's a subohm and I get vastly different experiences.
Of course that still could be subjective but it's the same coil so the shape of a tank related to your subjective desires I guess does impact strongly on flavor same
juice and all of them too cuz I only vape two juices one for pods and one for tanks and RTA's