So now the issue has apparently morphed from..
 
"Fast Bounce and Real Time exports are inconsistent"... (which BTW has been conveniently edited out of the OP)
 
to
 
"Sonar isn't feeding MIDI to my synth properly thus causing RT and FB exports to be inconsistent"
 
Uh huh...

Beepster, I did not delete anything at all from the OP.   I added one sentence of additional definition, and marked it as an edit.     Don't go irrational on us please.

I use freeze whenever I need audio from a soft synth. Its simple and it can be undone. 

Another great tactic. Once you've gotten enough bites/angered enough people accuse THEM of being irrational.
 
Classic!
 
Do the tests as I posted if you want to test the export consistencies.
 
Your "new" issue (Sonar improperly outputting MIDI to synths)... well I have no idea how one would test that because once the MIDI hits the synth the synth will do whatever it's gonna do to the audio... thus creating potential variations in any bounces/exports.
 
That was NOT the original issue though and unless it is causing severely and audibly out of whack playback there IS no issue. Merely navel gazing.

BTW... that maxed out memory/system resources issue COULD cause MIDI playback to stutter/act erratically AFAIK thus causing a REAL issue and possibly the lag in you export images.
 
That is a hardware issue or possibly poor system resource management from whatever programs are in play.
 
Is SONAR itself doing it? Unlikely otherwise there would be MOUNTAINS of reports of it happening... which there aren't.
 
THIS is why we troubleshoot... logically and methodically.

Below is quote from williamcopper aimed at Craig Anderton (Author of "MIDI for Musicians", Author of so many Synth manuals that I have lost track, Panel member At NAAM 2013 "Past, Present and Future of MIDI" along with Alan Parsons, Tom Oberheim, Dave Smith, Jordan Rudess & George Duke, etc., etc....) :-
 

williamcopper
 
I have to think you don't use midi ever, so it's probably better for you to bow out of this.   As I've said before to you, am not troll ruff ruff ruff. 

This is one of the funniest things I have ever seen on the internet..

jb101
Below is quote from williamcopper aimed at Craig Anderton (Author of "MIDI for Musicians", Author of so many Synth manuals that I have lost track, Panel member At NAAM 2013 "Past, Present and Future of MIDI" along with Alan Parsons, Tom Oberheim, Dave Smith, Jordan Rudess & George Duke, etc., etc....) :-
 

williamcopper
 
I have to think you don't use midi ever, so it's probably better for you to bow out of this.   As I've said before to you, am not troll ruff ruff ruff. 

This is one of the funniest things I have ever seen on the internet..

To be fair I think that was directed at me. It is still inaccurate because I DO use MIDI rather regularly these days but I am by no means an expert and CERTAINLY not as experienced as Craig.
 
But willie is still completely missing any and all points that have been made in this thread. Whether that is intentional or not only he really knows.

Beepster

jb101
Below is quote from williamcopper aimed at Craig Anderton (Author of "MIDI for Musicians", Author of so many Synth manuals that I have lost track, Panel member At NAAM 2013 "Past, Present and Future of MIDI" along with Alan Parsons, Tom Oberheim, Dave Smith, Jordan Rudess & George Duke, etc., etc....) :-
 

williamcopper
 
I have to think you don't use midi ever, so it's probably better for you to bow out of this.   As I've said before to you, am not troll ruff ruff ruff. 

This is one of the funniest things I have ever seen on the internet..

To be fair I think that was directed at me. It is still inaccurate because I DO use MIDI rather regularly these days but I am by no means an expert and CERTAINLY not as experienced as Craig.
 
But willie is still completely missing any and all points that have been made in this thread. Whether that is intentional or not only he really knows.

My mistake. Sorry. 

I fail to see why a graphic representation of your output should be considered the final word. This gets more confusing when the visual is generated outside of Sonar. Wouldn't the null test be the last word on accuracy? It's not a graphics program, it's an audio program. I don't see why you guys are all fighting about it. I use the visual bit of track view to see that there is data and if it looks to be free of clipping. I never considered the wave preview as something I would bet the farm on, particularly when monitors and graphics cards are all over the map in terms of quality.
 
Are the outputs of the two processes identical? Ask a blind man.

ampfixer
I fail to see why a graphic representation of your output should be considered the final word. This gets more confusing when the visual is generated outside of Sonar. Wouldn't the null test be the last word on accuracy? It's not a graphics program, it's an audio program. I don't see why you guys are all fighting about it. I use the visual bit of track view to see that there is data and if it looks to be free of clipping. I never considered the wave preview as something I would bet the farm on, particularly when monitors and graphics cards are all over the map in terms of quality.
 
Are the outputs of the two processes identical? Ask a blind man.

Always smarter, gets Yoda. As nearer draws Star Wars, hmmm?
 
Null tests are indeed the last word on accuracy, but only if the condition under which they are produced is identical. Copper is sufficiently sloppy in his methodology, and so opaque and condescending is his descriptions, that we may never know the issues with which he is actually dealing.
 
And waveform drawing...right Yoda is. But ears, listen to music Yoda does! Listening with eyes, Yoda tried...unsatisfactory experience, did he find.