you are assuming that people don't figure vac adv into total because of a full throttle condition. how many street cars are driven at full throttle? i know that vac adv has nothing to do with full throttle and there are street cars that don't run vac adv because of low vac and they don't run full throttle( all in by 2500 rpm, thats not full throttle on my car) however, that does not mean that the phrase total advance does not include vac adv even if you think that is the case USUALLY. don't say that vac adv is not part of total adv timing, it is. depending if you use vac adv or not because of YOUR motor set up is up to you, rewriting what total is, is not up to you. keep it straight and don't give wrong info. apply the correct info to your specific needs. still waiting for the info on the mains and metal transfer and why that happens.