US has many custom head clubs. to name a few, golfsmith, snake eye, SMT, tom wishon, dynacraft...the list goes on. I have never played with snake eye but a coupe of my US golf buddies swear by them (the 600 model) when struck properly its like a knife into butter. i own a tom wishon 1i, SMT 3.5W, 5.5W and dynacraft SW. they are all very good clubs but they are keepers simply bcos no resale value/no Malaysian will buy them used here. do a Google search on all these names and you will find tonnes of information on these custom heads.
PS i used to hang out in 4gea.com and freegolfinfo.com. these two are US based forum and many used these brands.