Reason is my main DAW, but it's lacking features for live sets. I now have to create a special live set song file and rewire Reason with Ableton Live. This allows me to start/stop sequences on the fly.
Wouldn't it be great if Propellerhead makes a new application for live sets?
Imagine a sort of DJ mixer app (let's call it ReMix) with 4 mixer slots that load Reason songs. You can than mix the songs, change the tempo, etc. And it would be totally awesome if you can also start/stop sequences in the songs (this would require a new sequencer view that looks a bit like the session view of Ableton Live).