I'm still rather new myself, and I won't claim to be an expert, but this is the information I've gathered from my research (I've only been reading up on the Nautilus specifically, though, because those are the only tanks I'm currently using).
The last time Aspire did a major re-design of the coils, they still kept selling the older version (and they're actually still selling both right now- they're called "BDC" coils, and the newer ones are the "BVC" coils).
The thing is, that change in design came about just from Aspire's own desire to come out with a new, improved product, so there was no reason for them to stop selling the older version. Obviously not everyone decided to switch to the BVC coils, because Aspire is still selling the old design, too, and they wouldn't be doing that if they weren't selling any.
So in that example, yes they made changes in the new coils, but the old coils are still manufactured and no one had to switch if they didn't want to. Win/win!
I don't want to accidentally start a debate on this thread about why the BVC coils were recently changed to having organic cotton, because that's not what this thread is for. So I'll try to just give you the facts, not my personal opinion.
A person made a video showing the original ceramic BVC coils (not the new organic cotton ones) being taken apart to show what they were made of. The ceramic filling was removed, and, when dry, the ceramic filling crumbled when rubbed between fingers. Based on that, an assumption was made that this was proof that everyone who was using those coils was actually inhaling tiny pieces of that ceramic material. On the other side, people said that was impossible because it can't crumble like that when the ceramic is wet, and it's obviously wet when it's being used properly. My opinion aside, those are the 2 sides to that argument.
Aspire made many statements saying their coils were safe to use and that those comments about ceramic being able to become dislodged and inhaled were completely false.
Anyway, a bunch of people started telling Aspire that they should just ditch the ceramic completely and switch over to organic cotton. That way it would give the complaining crowd no more ammunition to make claims of the coils being dangerous (regardless of whether they were right), and, theoretically, it could improve their product because organic cotton is said to be a great material to vape on (the best flavor, etc.) Aspire listened to the community, and recently decided to change their coils to this new organic cotton version.
Because this change was made for many different reasons (I assume the most important reason was to stop the bad press), this time they chose to stop making the ceramic coils, rather than keep selling them like they did with their last re-design.
Was this the right move? With a few of the complaints I've read on here about the new coils, I certainly don't think so, but that's my personal opinion obviously.
Did it stop any rumors about their ceramic material? Yep, because it's no longer being manufactured. Do the new coils sound like a huge improvement? On paper, and in their press release, yes (they explained the new coils have a much better taste than the old ones, etc.) But obviously there are complaints coming in from some customers about the new coils being inferior, while others do think they're improved. This is still so recent, that I'm pretty confident their team is currently working on a way to fix these issues, whether it be re-designing the coils again, or simply selling the old coils along with the new ones. Aspire has been great about taking and using suggestions that are sent to them. (Just the other day they came out with a kit that contains a new type of carrying case. That design came from a post on their forums from a customer who had created one for himself, and they gave him credit and thanked him for coming up with a great design, which I thought was pretty cool.)
So.... Yes, they do make changes. But it's normally not a change that people are forced to make. This was a strange situation. They listened to both the happy customers and the accusations from the community, but when the accusations were about whether a product is safe to use, and when Aspire's statements saying the product was indeed safe weren't enough to stop people from claiming otherwise, they decided to do things differently this time. I can't say I blame them one bit, but I do hope they offer the ceramic coils again soon. And some people do love the newer version, so hopefully they'll keep selling those, too.
[Side note-
Here's a link to one of the announcements by Aspire about their old ceramic coils, in case you wanted to do some research on your own. http://forum.aspirecig.com/viewtopic.php?f=15&t=1695 I believe it might reference a specific tank, but the Nautilus coils previously had the same ceramic material. That was from before they made the change, but I wanted to include it so no one reads what I wrote and instantly assumes that the old coils were dangerous. That was Aspire's reply to the accusations being made at the time. I did my own research on the subject and formed my own belief based on all the research I did, and I recommend anyone who has a concern about any product do the same for themself instead of blindly trusting any one person, including little old me.
]Sorry this got so long.
