I'm not sure that the ERGO uses the same soundcard, but it is a Pioneer ASIO driver for PC, CoreAudio for Mac (no driver required) I haven't tried switching between the two on a PC yet, but on the Mac it's okay. I'll see if I can check that today.
As for the pops, the software may require a different latency setting with that hardware, so you can't compare it to the settings of another software and another hardware.
The sync function is based on the software; you have to assign a master, it doesn't automatically do it for you.