You crack me up, Larry. In 2011 that entire area was frozen solid on July 4th even down at 10k along the Mirror Lake Highway. Even the lakes were still completely covered in ice! I can only imagine the cornices that were probably still hanging on up on Dead Horse Pass. Getting over it that early that year would have involved a lot more than post holing in a few spots. Could people do it? SURE! I know folks who have gone over vertical cornices on Knapsack Col with nothing but trekking poles pounded in to the vertical snow to climb the tip of it. Do most people want to do that? Hell no! That's a steep face with a narrow trail cut into it. Even on a normal year, a few big snow drifts for the average person can make that impassable or at least epic pretty quick. So when someone asks, my advice is to push it off a little into the season to make sure their trip is safe and successful and to make adjustments based on the conditions when it's time.
From your posts I've read, it sounds like you're a real tough dude. Hell, I honestly haven't even heard of a single actual person before who doesn't pack toilet paper! So what might be a piece of cake to you might be a trip ender for others. I've crossed over that pass when it was dry as a bone and I've crossed it when there were still huge drifts in August that would seriously freak some people out (not 2011, btw). This year is looking to melt early but a lot can change before July, especially coming from early January when this was posted. Here's a fact: in early July, you face a higher chance of defeat. In late July, you face a much greater chance of success. So all else being equal, why go earlier? Unless you just like the extra challenge, of course.
To the other folks who might read this, take that for what it is. I'm a relatively cautious hiker who writes trail guides for part of my living, so I try to think of all of this with the average hiker in mind, not the stronger hikers.