? ?"Using "uic" in an amplifier having any capacitor is a very bad idea. One waste a long simulated time until the steady state operating point will be reached to the last milli-Volt."
I wholeheartedly agree!
The simulation in the original circuit ran for 10 seconds of simulated time. ?I ran it for >30 seconds, and some of the waveforms were still significantly changing even without having to zoom in to the millivolt level. ?Because the bias points were still shifting, and some of the intermediate signals are low-level, it was having a huge effect on the output.