The record setting one that I saw was a 320A going to 350A.
He had around four years left. He's on the 320 and getting multiple GS at 350 pay. He was surprised he was bypassed and was prepared to go to training. I laugh every time I see him get a GS. His 3 and 4 day GS around the holiday were epic.
I'm senior to him, but a little bit younger. I'm still inside the 5 year window, but not near the 2 year window. I've read the contract about this. It's really tempting.
It was pointed out to me that if I didn't get the bypass, I could always bust training and go back to my original equipment. I'm not quite that Machiavellian.