What he said^
In the past 135 was a valid stepping stone because
1) Regional training programs were HARD.
2) They probably wouldn't hire you without 2500 TT, some turbine time, and 1000 ME anyway.
Today regionals fly glass jets which have little in common with 135 turboprops and *most* of them have tailored their training programs to ASEL CFI's, rusty retreads, and career changers. Also 135 training is not going to be as easy as you think and a training bust will set your career back.
Just do your homework, don't go to a regional with a reputation for having an old-school training program (it will be challenging enough without that).