The profile should be pretty much the same as aimed for with any other roasting method. First crack at 10-12 minutes, with 2nd crack at 14-18 minutes.
With the exception of roasting equipment that is limited in its ability (such as an unmodified popper) it is the bean that determines the best profile. That basic profile is the same no matter what equipment is being used. :)
Java "Its all about the bean!" phile