I'm embarrassed (or pleased) to say I've never needed to transfer SysEx data manually to update a synth etc.
Over the weekend I took delivery of a DX7 Mk 1 and that changed. It's in great condition but I wanted to get some patches into it other than the 32 defaults, so spent a few hours working out how to transfer SysEx data to it from my Mac. After a few hours of frustration I worked out how to do it
and felt like I'd won an olympic medal at the end of it
So I finally broke the SysEx drought - only took me 35+ years
I'd love to hear any recommendations of DX7 soundbanks you particularly love. I'm only using free ones at present and have seen some commercial ones, but interested in people's thoughts.