Jerks are prominent throughout the train due to Center Buffer Coupling mechanism for safety.
On basis of Reserved coach composition
From HWH to VSKP- S1 is the least to suffer jerks, and HA1 is the most. Even on 1A, those jerks were prominent, keep a bottle on the table and at the time of departure, it falls off.
From VSKP to MAS- HA1...
more... is the least to suffer, but S1-pray for the pax. _/\_ _/\_
Hope Railways implement LHB to this legend and its RSA Flagship part.