There is no controversy. Its not about run time but guideline. SBC Shatabdi dont have much run time but CNB/ADI/MYS/RNC/SBC/CBE/NJP/CDG/PUNE Shatabdi without backup Rake runs 6 days a week.
LKO & ASR Swarna Shatabdi in early days use to run Su with ICF Rake as LHB got break that day!! Every NDLS Based Shatabdi get one day off with Weekly ASR Shatabdi Rake utilized to back up every Shatabdi week off!!