I said it a couple months ago and I'll say it again:
Once you separate and go through the VA disability process, you can do damn near the bare minimum and easily end up with 40-50% disability. That's $1000-$1300 a month, tax free depending on how many parents and kids you have. The bonus is $35K/yr taxed, which depending on your bracket, will probably come out to roughly $2000 a month. So handing your balls back to Big Blue for 3/5/8 years will net you roughly $1000 per month over just getting VA disability. This doesn't even account for the piles of money you'll be making at your major of choosing if you separate.
Bottom line at bottom: taking the bonus will be the worst financial decision you'll ever make. You'd be financially better off buying a boat, airplane, and a 2nd wife. If you love your job and want to continue to serve, I respect you. But don't, for one second, think it's a good financial move to take the bonus.