Good to hear, because if the room is full of smoke, then something's on fire. It's called vapor.
Just kidding you a little, but we do prefer to try to stay away from anything that makes vaping sound like smoking. The FDA is doing a good job of making vaping sound like smoking all too well on its own, they need no help from us.
That said, if you're not getting as much vapor and flavor as you want, there are a couple of other things to try other than your new tanks, which are great by the way.
VG content in your juice. With your new tanks and the subohm coils used in these, they can handle more VG without giving you a dry hit (this is when your wick can't keep up and draw enough juice to wet the wick sufficiently). More VG equals more vapor.
PG is the flavor carrier and can increase the throat hit. For what you want, I'd go with a 30 PG/70 VG content in your juice. That should give you plenty of throat hit along with the vapor you're looking for.
Nicotine level will also increase the throat hit. Keep in mind that with subohm coils, you'll want to go with a lower nic level on the juice (you'll still be getting a similar amount of nic that you got in your Nautilus at a higher level with the non-subohm coils). I'd go with a 6mg or even down to 3 mg.
For example, when I was using a Nautilus with a 1.8 ohm coil, I was using a 12mg nic juice. That same juice in my Subtank with a .5 ohm coil almost blew my tonsils out. I dropped down to a 3mg nic in the same juice and I still feel satisfied with the nic output. @Earthling789 can probably explain better why this works like it does.
Have you been drinking more water? Vaping dehydrates you, which will also affect how well you taste the juice.
Open the airflow to full or almost full open. The more airflow you get, the more vapor and flavor you get.
Just some suggestions.