Uniqua, I gotta say your third photo looks pretty nice.
This V4L Ego is the first EGO I've had. Being heavily invested in their 808 OVKs (and chargers and cartomizers) is the only thing keeping me from going to 510 based standard (or the new VV ego).
{{hmmm, note to self: consider offering up a bunch of that in classies to fund a 510 conversion}}
Personally, I really like the mega cartos for out and about (I'm pretty rough on stuff and really just as soon ppl not be looking at my juices, if U know what I mean

). I use
tanks when sitting around at home but only on PTs, XL Titans and OVKs, and gives me the opportunity to use a coil with more ohms.
....so back to your trim pieces... as I said, this is my first ego, so I don't know any different. I tried the
tank on it and perhaps its appearance about that "neck", as you call it, reinforced my perception/concern that the megacarts would be better for me when out and about and abusing my gear.