When inserting a midi drum track, is it to late to break it apart?

You can edit / select individual drum pieces in PRV, if you have it mapped.
Also you can run (process) CAL program "Split Note to Tracks" to put each midi note on a different track for editing.

Sweet, thanks guys! 

Just pick a first destination track that does not exist. Cal will create all the tracks it needs.

Rocky

 . . . might have to Right click on track, then click "split instrument track" to separate the midi and audio.
(you can always use "make instrument track" to get back to simple instrument track.)

Destination channel is the desired midi channel.
Destination port . . . depends on you midi device (how many midi ports do you have, if in doubt . . . try port 1)

... hopefully you didn't save over it lose your sweet groove

Cal has been around at least since Sonar 1, probably longer. To be honest I haven't used it in a long time. I remember it being easy and working like a charm. I hope you get it worked out.

Rocky

Unless X2 is very different, it will only create one MIDI source track anyway. You can insert a synth such as SD with multiple outputs, but that's not the same thing.
You can split the drums out to different MIDI tracks if you want, but for me, it's better to have all of the drums in one MIDI track. It's much easier to see how the notes relate to each other and make timing/velocity adjustments in one track.
But it's good to explore your options, and if you find that a particular approach works for you, by all means, run with it.

Well, my goal was to do some EQ and compression on the individual pieces. In hindsight I should have just used Superior Drummers mixer for that. But hey, I wanted to play in Sonar. 

Midi would be useful for adjusting velocities, and timing / groove . . .
but since you're wanting to work with tracks that only need EQ and Compression . . .
like RobertB says - this can best be done in audio, with effects plugins, and mapping each kit piece to individual tracks.

Thanks again guys... I'm still getting my feet wet on how to get MIDI drums setup properly in Sonar. 

Now u tell me.  I'll watch them tomorrow

I use Battery 3 for my default drum synth, but the principles should apply to any drum synth.

What I did was to create several custom kits, where I started with whatever particular kit sounds worked for the given project.  So, I would open whatever kit was going to be my base kit for the project, but I would choose the Battery 3 version with all of the available outputs - 32 of them.  

Then, for each drum cell I was planning to use, I set the output channels so that each drum cell output to a different output channel.  I then saved the kit with an indication that it had multiple outs in the naming of it.

Them in Sonar, I created a special project template where I created a Track Folder for Drums, and within that track folder I had a single midi track for all drum midi data, and then inserted a bunch of audio tracks, one for each drum cell from the custom kit I had created.  

After naming each of the audio tracks for the corresponding drum kit cell, I saved the project as a template, so that I could start new projects for this particular drum kit and have all of the above all preset for instant access to all of the settings and track-routing.  I also did some basic level settings for the kit as a whole prior to creating the project template.

Using the above approach, I capture all midi data in one track, which can still be easily edited, and then I have each drum/cymbal routed to its own audio track.  This gives me complete control over each and every kit piece, for effects and levels, and I have no issues in editing the midi data either.

Please note that Cakewalk intends that you should NOT use a drum map to create midi clips using the Step Sequencer.  If you try to do it, you will have many problems trying to go back and do editing, so just do not se drum maps with Step Sequencer.  I created a little mapping of my custom drum kits that lists the note numbers for each of the kit pieces, and that makes data entry and editing easy - I just look up the proper note number for whatever drums a particular midi clip wll use.

Bob Bone

Can't you get SD to route it's outputs to seperate tracks? Then you can use audio tracks to adjust the individual  components to taste. I think you do it when you load the VSTi, select multiple outs instead of stereo. I don't have Superior so I can't check it out. It works that way with Addictive Drums. Just trying to throw out some ideas.

Rocky