I've posted in a couple threads that I see the IG rain gutter no different than my repeatedly overloaded Series/RRC/Discovery rain gutters, and therefore have no concerns mounting a rack. Then questions were posed about the IG rain gutter width, resulting rack foot (in)compatibility, and even potential work-arounds. Since I am likely 9-months from my Gren and now thoroughly confused, I took a deep look at all the various rack pictures others have posted. What did I find? Well, the perfect solution...
Take a look at the two Rhino rack photos below. You may have to zoom in, but look how upper and lower "clamps" are designed to clamp the center of the gutter and not against the outermost lip.
View attachment 7819117
View attachment 7819118
Next, look at the (hidden when mounted) leg reinforcement, and the fact all four legs form one outer plate running the full length of the rack.
All of these design features help distribute loads along the gutter, preventing high loads to a single leg as the platform flexes (yes, they all flex). Genius, right?
I'm really happy with the Rhino design and very glad it's included in my order.