Although I teach my students not to relay on muscle when training we spend a lot of time building muscle strength, but not big muscles. We do hard core fitness training of varying types five days a week. I instill in them that it is excellent technique that will carry them through in the end, but they still have to be tough. I come from a college and national wrestling background to go along with 13 years of Jiu Jitsu training. So I feel that combining both mentalities and types of training is best. What is your opinion?