The only way to transition into the 175 is to upgrade, or if your current equipment (or possibly base) is eliminated.

Also, I'm not sure what you mean by YV has cancellation pay? It's called a monthly guarantee. The guarentee covers you if trips get cancelled, but if you're trying to work past guarentee that means you need to pick up an extra trip to make up the loss. Not that I'm complaining, just setting your facts straight.