Well I figured I bought a quality cam and lifter set with my CompCams Xtreme 268 and will still feel like that.....unless something goes wrong lol Nothing against Summitt either. It's an incredible value and Summitt wouldn't want their own name dragged down by bad product. Probably the biggest favor you can do for yourself is using a good oil with higher levels of ZDDP (or zinc for short) for long lobe life. Roller cams have no worry, but popular modern car oils are not helpful to hydraulic or solid tappet life. Do a search for "oil" on here. There's a couple threads about it.