Par HWH WAP7 Poorva ke saath zyada successful nahin hua. Jaise speed ke mamle me. GZB WAP7 constant 130 tak jata hai. Balki HWH WAP7 apne premium trains ke saath zyada successful hua hai jaise Howrah Rajdhani, Ranchi Shatabdi, Sealdah-New Delhi Duronto, Howrah-New Delhi Duronto etc.