Yakima Offgrid roof basket with kayak mounts?

I got this basket due to the cross bars. I have Yakima JayLow kayak mounts. Quality brand and made to be setup like this. However, these seems a bit scary to me. That’s a lot of weight up that high.

Anyone else using this mounting system?

Why not just mount it flat and not such a cross wind obsticale?

I could buy a second mount setup for that, but I bought Yakima JayLow mounts so I can mount 2 yaks when needed.

I have friends that use that rack with no problems. Of course they also carry a trimmer sea kayak than one like yours. AND they use straps!

They have the Offgrid basket with boat mounts in it?