Originally Posted by elan
How could be sample accurate a software CV/gate like silent way that sends clock using the interface outputs?
There will be the driver lag and the latency will change depending on the buffer size, plus you have the jittering of the USB or the firewire port (depending on how many tracks you record at time, and in general, how much bandwidth you are using and if you have hubs, other things connected that influences the USB/firewire bus)
Your system will all have the same latency. By tricking the daw to treat the sync as audio you are locking your machines to whatever latency the audio inside your daw is. Thats the point. If your machine were ahead of the audio in your daw you would have a problem instead of the initial problem of it being late and sloppy running off midi time from the daw.
As for jitter on the usb/firewire port get a pci-e sound card and external converters. When you playback audio do you actually notice jitter in your audio? I would think that would be a ore pressing issue then buying a sync box.
All of the problems presented have nothing to do with these products. I would say one should have a very tweaked rig and then grab one of these. There are many paths to the end result of producing some sounds that we feel have worth. Go with what you feel is important on your journey.