Nothing replaced the C-23, it takes about 2 years of flying the c12 to get to the IP course. The problem I see is getting to the C12, it takes time and it's hard to say you will ever get in a fixed wing Det. You may get in right away and you may not get in at all. It comes down to luck and timing. I got lucky that they needed someone to deploy so I did. I then got lucky again when we returned from the deployment and had a couple guys retire so I was able to stay in the unit and go to the IP course. The good news is if you get in the flying is great and you can average 340+ hours a year of king air time if you are available to fly.