Yes Rajdhani, Duronto and Shatabdi trains have adequate occupancy because of mixed classes of Coaches. Full AC 3 Tier Train with Dynamic Fare fill karna bahut mushkil hai.
They should remove Flexi Fare from all Humsafar trains and bring their base fare on par with Mahamana Trains (base + 15%).
Sasti trains sabko achchi lagti hai, par Railways ka banta dhar ho jaayega inn sab se.