To clarify some confusion about these shelters , here is a direct comparison in specs.
Since you are still looking at the Akto and the Force 10 then the Scarp is still the TT to compare with that.
(by that I mean if you are looking at a Ford Falcon you don't compare it to a Barina...)
Fly and inner




Dimensions:




Weights.
The Force 10 is the lightest at around 1.1kg with decent pegs.
The Scarp is a bit less than 1.4kg (seam sealed)
The Akto is about 1.5kg in use
The Golite is listed at 1.550 kg (not verified)
The Golite has the largest footprint, next the Scarp (about 18cm wider than the Akto but a couple of cm shorter )
The GolIte also has the most headroom at 114cm (not verified) next the Scarp at 102. The other two are about 90cm
As you can see the Akto can have the mesh part of the inner fully sealed , but both the Helium and Scarp have only the top 1/3rd or so of mesh, the rest is fabric.
Pack size (approximate size)
Helium 40x10cm
Scarp 51x10cm
Akto 38x20 cm
could not find the Eden specs but it looks about the same as the Scarp.
I only had a brief look at the Golite Eden (in Seattle) so not that familiar with it . Unlike the others the inner is all mesh (mind you sand storms are not as common as some make out...)
You can buy the Scarp with a mesh inner or as you can now do with the Akto buy it on top of the fabric one.
Franco