Did a few basic null tests and so far everything nulled perfectly. I didn't even use any change in fader or pan so its a very basic null test. But it nulled.
While nulling few vsti riffs however there was difference but thats coz synths dont output 100% same audio everytime??(correct me if I am wrong.) So I guess these synth tracks not nulling is not a Sonar or S1 problem. When I bounced the same instrument track twice in Sonar itself and try to null both they don't null.
Other than that I guess there is no difference in audio engine of both. I haven't run any extensive tests so too early to conclude. However I am pretty sure the GUI alters our auditory perception a lot. Seems thats how the brain works. Sonar's GUI is very inspiring specially while mixing.
Jarsve
The faders are different. And I dont have Breverb, REmatrix Solo and BT Compressor CP2S-3. For the Bass with the BT Compressor, I imported the freezed track.
So you haven't finished your mix yet? The Sonar mix is very good so probably you can try the same fader and pan levels. For reverb try to use some other plugin with almost the same settings. I guess it will turn out fine.