RTAs are the hardest things to build well, but once you do get the right combination of coil and wicking you are golden. If you get one RTA down exactly as you like it then why look for a new one, unless you like going over and over that process.
I don't think there has been much innovation and really there can't be - nearly all atomisers are roughly the same size and shape - there isn't going to be a lot of innovation going on. Move a post a mm, slightly offset the post holes, different shaped airflow holes....there aren't a ton of things you can do. I had a look at all the new mesh variations of rda/rta - my conclusion is - nope....they are bullshit.
I don't think there has been much innovation and really there can't be - nearly all atomisers are roughly the same size and shape - there isn't going to be a lot of innovation going on. Move a post a mm, slightly offset the post holes, different shaped airflow holes....there aren't a ton of things you can do. I had a look at all the new mesh variations of rda/rta - my conclusion is - nope....they are bullshit.