There's a big shortage of GA multi-engine instrument instructors in the US as many have left for regionals or part 135/91 operations. One MEI student I know had to wait 3 months before they could find an instructor to finish his training. Even a 'career instructor' I know with over 12,000 hours of dual given has joined a regional just for the free jet type rating. Not many airlines around the world offer that these days, and by free, I mean absolutely free without bond or even minimum years of service.