I agree genesis attys are the best vape out there .... I've had one for only 2 or 3 weeks and its hard to put down.
But the REO was designed as a bullet proof leak proof mod to grab and go and last all day or more.
There is no way to make a genesis atomizer that won't leak so I don't see the need to try and make a REO version.
My genny set up sits on my desk on top a VV tube mod and thats were it will stay ..... for any activity at all I will stick with my good old REOs that I cant top with any 510 threaded device that suits my need.
BTW, a VV REO with a Chalice loaded up with a SS Mesh wick and 32g A1 Kanthal is a very close vape to a genesis and doesn't leak if it tips over.