McWilson would be nuts to flip to Kentucky. It would be a gut decision and nothing else. He made the right move already. He just needs to not let last-second doubts put him in a position where he signs with one of the worst schools in the SEC instead of the program which is, even with soggy defense, is in position to compete for a conference championship on a regular basis and possibly more in the next 2-3 years.
Nebraska ain't Alabama, but it ain't Kentucky, either. I hope he enjoys the vacation and quietly closes the door on our ex-grad assistant.