Hmmmm... I am using the sealed post bridgeless 306 1.5 ohmers from cisco, this on 3.4 volt egos, and they work great.
But, this is my main juice and a few others. Other juices I have, tend to burn at that much wattage (about 7.7 watts), not normally but when I get down to the end of the vape, and so I have them on sealed post bridgeless 306 2.0 ohmers from cisco.
But still.... vaping at the 7.7 watts gives a lot more 'hit' than at the 5.8 watts and so... been putting the 2.0 ohmers on my ego c twist set at 3.9 volts (7.6 watts.. about the same as the 1.5 ohmers at 3.4) and... you get a lot less hits per drop but you get more TH for sure but, yeah it still starts burning when you get down to the end of the vape.
So, this is a function of the juice and, I could go one way or the other or, at least on the ego c twist, I could settle on somewhere's in between.
Oh, I should say here.... I oftentimes drip 7 drops or so... but yeah, with that many drops, tends to gurgle until you vape away the top couple of drops or so. I can of course adjust this to my liking.
I think the bottom line on this... there is still leeway when using these atties, and thus any user would probably want to adjust things (drops dripped, voltage used, etc) to their liking.