Not sure why everyone is getting wrapped in this RoS signature debate as you are just a chap trying to leave - nothing new in that.
The RoS does not stop you applying for a PVR, it just may stop you from exiting in the timescale you seek. Please discuss your options with your desk officer before hitting the button. If you are already committed to leaving come-what-may then hit the button anyway and the Service will have to react!
Think carefully, discuss with your family, your mates and your CoC. I was chatting to your stn cdr the other day and he is committed to helping everyone he can, even if your chosen path is outside the RAF. Good luck and I am sorry it has all come to this.