Yes, 78s require a hemispherical stylus to ride the grooves properly. I hear that with the SME arms (especially the 309?) it's fairly easy to have additional cartridges pre-mounted to arm tubes/headshells for quick changes. I got a rackfull of pristine 78s from my father-in-law and I'd hate to just write them off. Keeping the TD126 in the system just for 78s wouldn't work though as I already have too many boxes in the system. BTW, anyone hear anything about the new TD350? It's a floating sub-chassis model similar to the TD126, but with mass drive and other current features/capabilities. It's available with the SME 309.