My goal is to check what Q1/Q2 can contribute in this simple power supply circuit. I did some simulations myself ( I have shown one of them in above), and rather sure Q1/Q2 could not make any difference to the circuit performance. You are the one thought that Q1/Q2 could help in start-up inrush load current, so I cooperated with you to make 3 simulations and eventually concluded that Q1/Q2 again failed to show any benefit at all. The results were not inline with your expectation, clearly I know. Nevertheless, my goal is met, Q1/Q2 configuration is surly a crap, from a guy who even put a diode in series with a capacitor (D15/C30). If you still like to go further with it (to find out under what conditions it will work), by all means please proceed in your side.