Short Version: Yes.
Longer Version: Usually on routes where it is "beneficial" and they also consider it a "feeder program", get good guys with good attitudes but short on time, put em in the right seat, train them up and put them on the line. Works well from what the people I know there tell me.
Also, before people jump on this and say that the average 135 op isn't going to pay for the extra pilot, I bet you they would, low rate and they double as a ramper/loader/agent/fueler etc. So I bet Ameriflight/Wiggins etc. would probably be on board with that if they realized the benefits, 15/block hour is not a lot more than paying for another ramper to sit on the ground.