"Racing school" or Performance Driving Schools?
Before learning in a "racing school" how to pass somebody in a corner or going three abreast, I think it would be more logical to start learning how to corner alone... The "racing" content in any school, and from any club is great, as long as it is based on a strong knowledge of the basics. Those basic notions, wether they are about cornering, braking, car dynamics in general or even proper behaviour on and of the track, require several weekends, or even summers to master. Only a genius or natural born and highly gifted person can pretend that he can totally aquire in a two day "racing" school the basics and the "racing content". Not everyone wants to go into competition. And even though the word "racing" seems appealing to many, and carries a lot of bells and whistles, you don't need a "racing" school to learn Performance Driving. Most clubs will even ban cars from passing in a corner or without receiving proper signal. There are many clubs teaching Performance Driving. And some of them have done it for 30 years. And yes some of those who attended those Performance Driving Schools are now highly ranked racers.
Will a novice really benefit from learning how to pass in a corner when it barely knows how to take that corner alone, or should that content be only left for the few of those who want to go into competition? If this is to be left with the competitive crowd, well maybe a course dedicated to "racing" with 100% racing content and not the basics of car dynamic should be appropriate.
You want to learn Performance Driving? Don't be fooled, thinking you will ALL learn in two days. Play safe, have fun, get several weekends of drivers schools. Then get a "race" school if you have enough knowledge and competence. This is the cherry on the sunday.