i don't use logic, but i have used all versions of cakewalk sonar for years.
if you can, try and insert a soft synth, in sonar reason jst automatically appears on the available options but like i said i don't know about logic.
re-wire is the shyt, i'm recording all my shyt into sonar and rewring reason into 1 audio track, using an m-audio axiom as a controller but using my mpc as the sequencer also.
i can honestly say this is the most versatile set-up ive ever used, it's astonishing as to what i can do with it.