I can't answer your question, but it took me quite a number of operator hours to get used to the sounds of the BX when I purchased it new. I was used to a diesel engine, having one in a truck, but I wasn't used to the hydraulic sounds (for lack of another way to put it!). The HST and all just produce some "different" sounds. I never notice it now. I'm curious if the Grand L will make new sounds that seems weird to me?!
Terry