Hello everyone.
I have two Mac Pro with OSX El Capitan to run a show with more than 700 preset and I am having some problems with the preset edit window and also with midi devices Catalyst: delays, blocking etc.

Advise me to change the OS version¿
What is the version of OSX recommended in this case ?.

I am also using a MIDI controller to generate a note that trigger the Cuelist on both Mac PRO at time (backup).
Do you think that this system can work to synchronize the both Mac Pro¿

A greeting