Oof! Good to know, thanks for the heads up!I bought the 65" SRM500 with the gutter mounts and returned it.
It's a decent looking rack and probably not a terrible system if you're planning on using the roll-cage mounts but I'd definitely recommend against it if you're planning on using the gutter mounts.
My experience wasn't great. Once I finished assembling it, I noticed it was visibly crooked:
I figured maybe it'd sort itself out once installed so I gave it a shot... I had the 6 gutter mounts.
The gutter mounts are probably the worst system of the kind I've ever come across. The design is completely ass backwards. By the time you align everything according to the instructions, you barely have any access to the bolts you need to drive to lock the gutter mount clamp. I ended up doing it like in this video, but that came with its own set of alignment issues. Would have been so much easier to drive those bolts from below, so the rack wouldn't interfere with the bolts.
Once it was mounted, it felt pretty flimsy, even with 6 gutter mounts.
As a replacement, I bought the Rhino Rack Pioneer and damn, they're worlds apart in terms of build quality, instructions, and fitment. It's 2x more expensive but you get what you pay for.
Hope this helps.