A height challenged friend likes the folding ones better because she can get the strap on in the folded position.
I use yakima because they are quick and cradle my relatively fragile surfski well.
I've got a collection of saddles and rollers in my basement as well, ready to donate to someone who just likes to drive around with kayak racks on their car.
If you are going to carry several get stackers and just pad the bars.
PVC pipe tape over pipe insulation or foam blocks works well and doesn't leave a residue on your boat as duct tape will as it ages.
EZ Launch™ Kayak & Canoe
Kayak Deck Gear Bags
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