"but my point is that the short performance field of the Dash would open up more destinations and allow for better fleet commonality given that all four variants fall under the same type."[/QUOTE]

Ok, The Saab 340A, 340B, 340B+, and 2000 are under the same type. Each being a big improvment from the last. They also swap alot of the same parts. So what was your point?

How many "types" of dash do you have?