Gibsonflyer
How about Air Southwest ? they could make a BOH-MAN-NCL work i'm sure. Both BOH and NCL not served from MAN. If timings are right then NCL passengers could transfer at MAN onto CWL flights aswell. A 50 seat aircraft twice daily may be more suited to the route than a 737.
Before anyone says MAN and NCL are too close to be linked by air the driving time is greater than MAN-BRS which supports a 3*day service.