Ya agree all trains like sf Humsafar mail get bad run in CR but if you are traveling in duronto rajdhani then you are sure shot get premium run and priority as 12270/86/86/85 duronto cover ngp bpq 211km in 2 hr 15 mins in almost every run average speed is stunning and rajdhani too but Mail sf gets average run and priority even in bpl et ngp Raj duronto gets best run while sf struggle a lot