Thoughts on wheel spacers?

i use them all the time. the cheap 1/4 spacers are junk. i have not found a quality billet aluminum spacer under 1" thick. i would never use anything but a billet aluminum spacer. dont go cheapo when using these, and make sure they are perfectly flat on the mating surfaces and they are torqued correctly. i have NEVER had an issue and i have run them for years.