I just bought a set of the "Bones Hardcore" bushings and I have to say I'm not very impressed. I like my trucks fairly tight and after reading all the reviews on these thought I would give them a shot. I've been using Doh Doh's bushings and they seem to do a much better job. I installed the bones bushings and could tell immediately that I was going to have to crank down on these to get the same stability that the doh doh's provide. I rode on the bones for a bit and tried adjusting the tension but ended up taking them off and putting the Doh Doh's back on. I don't know if it's because the Doh Doh's are the barrel/cone shape, but to me the Doh Doh's provide a much more stable platform.