I've intended to make this build without the use of In-Geom.
As of current, I have 931 Paragon, ancient weapon, shoulders, and rings, NO AUGMENTS, and lvl 70 gems.
While I do have higher than the standard 800 Paragon, to say this is a weak build without all the upgrades and Paragon would be misleading.
However, I'm able to run t13 in 3 min or less, and have pushed up to GR70 with little difficulty.
While this is by no means impressive, it's much better than you'd expect.
The only difficult part of this build is rolling all the CDR and Exp blast damage.
CDR is extremely important in order to make the build viable, without In-Geom.
It's a much more casual variation of the build, and while it can still be used as an elite hunting build; Elites are not mandatory in order to move at speed.
This means players that enjoy full clears can do so.
I enjoy that I can loot t13 without losing out on In-geom time.
2 piece Sage
RoRG in cube
Put on Tal Rasha gloves
Halo of Karini in cube (Unity may also work, haven't tested)
I have corruption on my build because I have ancient - legacy version, with the 7 yard pickup radius.
(Hoping I can re-roll them without losing the 7 yard. Keep your fingers crossed.)
So far, my testing has only shown a variation of about 10 seconds while running GR63.
P.S. - Leoric's Crown in cube.