dude I stick 560# of pavers in the back and I barely drop 1/2", and the 500# plow on the front as well. avatar picture is real. she rides stiff with just me, but 3 of us, all our isht for a 2 week trip to the Outer Banks, Yakima 4-timer and 3 bikes on it, and she rides great.Nothing really. Bike rack with 3 bikes, camping stuff. Its entirely possible they were packed wrong. Who knows. They are the 948. Other issue is the 927 are so stiff that the front is a little higher than the rear. These are to make it more even and project headlights down the road better.
and if you think the 927s are stiff, try the 790s!