I'll toss in my two cents... but I want change back, m-kay?
From a technical perspective, rather than a "yeah, this seems about right" perspective... if you match all the variables...
wire gauge
net resistance
parallel coil count (if more than 1 coil)
coil surface area to wick exposure
wick capillary capabilities
wick density and fit-in-coil
juice PG/VG percentage appropriate for RBA type, air flow and wick material...
to the wattage applied... either by Ohm's law calculation for a mech, or just clicking the appropriate button on your high-watt regulated APV...
to obtain the desired heat flux, heat capacity and % leg power loss...
then you have the best you can do, and the physical shape of the coils between terminals, IMO, has minimal relevance.
Or... you can bag all that and just run the "yeah, this seems about right" build.
Easy huh? ;-)