Other quotas in 3AC are Sr citizen 40, Physically handicapped 2, Premium tatkal 55. So another 50 allocated to RAC (RAC 100 approx) RAC will confirm fully on every run. If u check how many tatkal and premium tatkal are booked by evening 1800 the rest eill be confirmed with RAC and WL. Saturday being weekend people will book in tatkal to SC (being day journey % of traveller is not high as in night train)but how many will book to Shirdi paying Rs 400 extra per person generally 2-6nos per ticket and travel in a hurry. So most berths wil be left vacant after chart during weekdays unless there is heavy WL. Chances upto WL 50 will conform 100%.