that is an interesting point. I've been think the same thing about the lower guage wire and I think its time to go for some 28 or maybe 30. I'll report back!The Gem is a compact chamber, so the max coil I use is 28 gauge 2.5mm. I've done 26 gauge, but felt it was too limiting on airflow. Even with 28 gauge, I have no problem getting plenty of vape and lots of flavor. Otherwise, if large coils are a requirement, I'd probably suggest the Calix or Squape, but those fail your other requirements. Maybe Qorax knows of something...