I've been trying to mix my midi/sampled JABB drums to an analog track in Sonar 3. The midi/sample track sounds great.
BUT - when I try to take this performance and mix the midi/sample track to an analog track (via the "Bounce to Tracks" selection in SONAR), the analog is "corrupted". That is, there are parts of the analog track where a cymbal is cut short in some places ... or suddenly a drum hit(s) is missing/muted. Again, the midi/sampled track sounds fine.
I don't seem to have the same problem with strings in GP03 when I do this same type of midi->analog conversion. Although, with strings, this type of problems might get buried in the overall orchestra. I'll need to confirm.