I haven't noticed any problems either with my old ISE 77, not 777 or with newer Viking 1000 which I chose based on Volsboy1's advice a few years ago.Usually now though I try to rinse out egg shells and crush up to use in the veggie patch as slug repellent and calcium source in one. A question for volsboy1 or anyone familiar with disposers, is the ISE LC50 a modern version of ISE'S top of the residential line Classic from the 1980`s. I think it lists around $1000.oo but it must be some machine.