I want an rda that i can run a single coil in in the center of the deck, it came about by using a single coil this way in the phenotype-L, great vape for a single but the airflow had to be placed so that it was coming in from the sides where the posts are plus both the phen-l's had broke due to threading in the posts failing.
I really like the look of the connectors of the Goon rda but a single coil can only be placed sidesaddle.
The aeronaut is an option but i think i would struggle to keep the rda cool enough as it looks kind of tight in there plus some of the wires i make these days are ending up 4mm wide which by the looks of things wouldnt fit in the connectors.
I have a 30mm Temple which isnt to bad but it could be better, it struggles to accommodate 4mm wide wire in which case i have to squash the wire a little to get it into the post holes plus the airflow is a long way from the center where the coil is so flavour isnt as good as it should be, i suppose a Temple with bottom center airflow would be an option but i really deslike bf airflow, you mostly have to take the topcap off to paint the wick so as to prevent over dripping or dripping down the airholes, putting on and taking off the topcap also pushes juice which has built up as condensation on the inside wall of the topcap down past the o-rings on the outside of the deck which also add's to a juice collection on the outside of the rda..
i have noticed that rda's that have a little lip on the outside of the deck that the topcap sits on seem to prevent juice running underneath but this could just be due to the fact that we are able to see it and wipe it away before it leaks any further, in either case this is the reason why i prefer to have a rda that i can just drip down through the driptip without any worry's.
I do have a couple of 24mm Temple's on the way but only because the 30mm version i have is built like a tank and is the closest to a perfect RDA i can seem to get, but yet is far from perfect, nothing on the market seem to be able to tick all the boxs.
Its very sad seeing all these attys/rdas coming out and not really seeing any real improvements towards what i feel would be a good step.
I would like a 24mm rda with 2post design or goon style connector's either side of the deck which will accommodate upto 4mm width x 2mm depth wire, able to support coil thickness of 7.5mm so if it was a two post it would need to be a 10mm gap between posts, and a more reasonable airflow option on the cap which will allow for good flavour on a single centered coil.
Oh and it must be built like a Tank because i hate rda's that break and in which case i nvr buy again

It's not unreasonable because these options on an rda could be used by everyone, not just the guys with wide exotic wires.