Here are a few tips I picked up from rewiring Reason to Sonar.
What version of Sonar? The first tip is for version 5 and up. The others should work with any version greater than version 3.
If you are using version 5. Make sure to upgrade up to 5.2 which is free for registered users. This removes the 16 midi rewire channel limit and allow you to drive many more reason instruments from Sonar.
You can use Freeze to bounce all of your Reason rewire tracks to audio tracks with one action. It still takes time to bounce, but you can execute it once, walk away, and come back when its done. This beats bouncing down every track one by one like you have to do in Cubase. Access it via the asterisk or snowflake toolbar button in the instrument rack.
Once you create a rewire configuration with Sonar that you will want to reuse, select all of the tracks and buses involved and save it as a track template. Then you can load that track configuration in other projects. I like to do this with the Reason Drum Kits setup which utilizes a number of midi and audio tracks.
To deal with bringing over stereo reason instruments over mono rewire tracks, in sonar, pan the left audio track full left and the right audio track full right. Then create a bus and send the panned tracks to that bus. Then you can use that bus track as if it were a stereo track and add effects, control volume, etc. You can even route that to another mixdown bus if warranted.
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