I think you're overthinking this and then getting scared by the numbers. I heard the same thing about campy Syncro, and every possible fix from using a Shimano free-floating jockey pulley to Voodoo magic to overcome its quirks. Mine are '92 vintage campy Record 'Syncro ll' and it shifted my Record 8-speed cassette though a Shimano 600 SIS 8-speed derailleur just fine. Optimally speaking, and going only by the numbers, then the appropriate campy derailleur would be better I would suppose, but I honestly couldnt tell the difference though when I (finally) scrounged up that Chorus derailleur. They both shifted great.

Given a little bit more time, campagnolo would've perfected the Syncro DT shifters, but instead they ushered in their 'Ergo' technology to compete with Shimano STI, who was a year ahead of them. Sad, in a way, because it spelled "the end" of downtube shifters forever.