I have to admit that I have only tried a batch of Boges about a year ago. I did not care for the longer time it took to fill them, and did not care for the flavor production that I got from them. Admittedly, this was around the time of "Boge Gate", when the quality of Boges took a nosedive for mysterious reasons. I was relatively happy with the Smoktechs, and extremely pleased with the Ikenvapes when I began using them, so I have not felt the need to try Boges again.
I don't find the Ikenvapes any more difficult to fill than the Smoktechs with my drip & shake technique described in my blog. I also have not observed the difference in draw that you described. I actually don't care if a carto has a flange or not. With the tanks that I primarily use (IBTanked), they fit snug on the cartomizer so that there is no need for a flange. The Ikenvape 510 Fusions do have a flange.
I'm not sure if it makes a difference, but you said you purchased LR Ikenvapes. I use standard resistance Ikenvapes. The vendor once made a mistake and sent me LR by mistake, and I did not like them at all, as I prefer the cooler vape I get with standard resistance. Just an observation.
Not everyone will appreciate an Ikenvape, because like any juice delivery device, preference is subjective to one's individual expectations and perceptions. You make a great point: If you aren't able to appreciate the better quality of an Ikenvape, then get the more easily available Smoktech's.
