Wow, I'm not so sure the vaping experience will be the same from an eGo to an Icon...
I have a Protoge' and a couple eGo's and the Protoge' vapes stronger... and there's a reason for it... the design of the Protoge delivers more current to the atomizer because there's less loss in the switch and there's no electronics like cutoffs to get in the way of the current delivery... the difference may be subtle, but it's absolutely there. When you consider the wire gauge difference, (equivalence, of course) and the simpler design, an all solid mod simply does a better job, in my opinion. When I build a box mod, I use 12 Gauge solid wire for that very reason... more current delivery = better, more consistent vaping.
I have no reason to think the icon would be any less of a difference.