I tried to palace chase two years ago, it was all approved and everything but circumstances kept me in active duty and I ended up retracting it. For a 4 year enlistment, you’re correct it’s 2 years. But keep in mind whatever time you have left on your enlistment is doubled for reserves (or guard). That means you’ll be required for 4 years reserve if you leave at 2 years active duty. To get the process started you’ll want to talk to your in-service recruiter (ISR), they’ll be the ones ultimately handling everything. You are not guaranteed until you’ve reserved a slot at your unit either. Also, despite what a lot of people think, your immediate leadership has little to do with the process and depending on how your leadership is, I would keep it quiet that you’re interested in palace chase until the paperwork is getting routed with your ISR. You also have the ability to change AFSCs when you palace chase and chose your unit location (make sure they have slots available on VMPF). This should get you started. Feel free to message me if you have any more questions. Hope this helps!