I have skunk2 with koni 5 way adjustables. I've never bottomed out but then again I've never hit a speed bump going to fast. on my car u can jump up and down and the car barely moves. I have a really stiff ride but I'm useto it . I drive about 100 plus miles a day. I love my ride. I did hear that obx have the same spring rate as skunks, don't know if it true.