Ace classic bushings for life. In any brand truck, doesn't matter, makes everything better. Only issue is sizing, some (maybe most) trucks like a low version top and normal bottom. They do compress slightly over time and take a while to fully break in, so you may have to tighten up eventually, but they are extremely durable.
How are the new Ace AF1 bushings? I was not happy to see that (according to the ads) they are different than classics, no more dual-duro, and harder. Are they the same urethane at least? The classic bushings have a much more rubbery feel as opposed to plasticy like every one else. Looking forward to trying them eventually, but really hope I can get a couple more classic sets so I have a lifetime supply.