I interviewed at Ameriflight almost 2 years ago. I was told in the interview that the Lance is only considered a trainer/transition aircraft to make it easier for new Part 135 guys to pass the checkride and learn 135 flying. The move to the Navajo (sp?) was only supposed to take 6 weeks on some guys with good twin time and/or previous 135 experience were being direct hired to the Navajo.
However, I never worked there so this could be a line they feed you at the interview. Also things could have changed in the last two years now that airline hiring is in the crapper. But since no one replied to your post, I thought some info might be better than none.
Tim