In terms of USSD... While many of their schools are not good, there still are some good ones out there. I would take the time to go check out the school in your area, you could happen to be near a good one. do you have any advice on how to determine whether it's a good school or not?
I live in phoenix, az and i'm looking for a kempo school, i found united studios of self defense, but i heard they're more interested in making money than teaching martial arts. Does anyone know of good kempo schools in AZ?