Thanks! I was traveling from Udaipur to Sarai Rohilla by the Rajasthan Humsafar, which was on that day hauled by a WDG-4D. The ride quality was the same, though the train struggled to go faster than 100 on the sections where it usually does 110.
I don't think Salasar would have issues with that, though, because for most of its run it goes through territory with MPS < 100.