The instructors were actully surprised by the amount of 1500 types in my class. It's about 1/3 1500 hours, 1/3 previous 121, and 1/3 mil/135. And I know of several guys coming into classes in the next couple months that are coming from being CFIs. They are out there, many are just shy about the regionals. 121 more than any other facet of aviation tends to be perceived as a gamble.