I see your logic. I'm glad you posted, 'cause there's something that I do before hard runs or climbs that really helps on the big day.
Marathon runners call it a "taper", because you shorten the distance of your long outings during the last 3 weeks before a marathon. You'll also want to ratchet up the intensity just a little so that your normal pace will feel easy when you go on your trip. I employ the same approach for, say, setting a personal best on Skyline or South Fork, or when I do Whitney. What it works out to is letting your body fully recharge and heal before the 13r, so you're strong and almost itchin' to go (as they say in the South). I'd encourage you to give it a try.
The most straightforward way to try it out would be to cut out anything that takes, say, more than two hours of nonstop hiking for the next week, then cut out anything that takes more than one hour of continuous hiking the week prior to your 13r ascent.
For example, pick a trail you already know takes you about 2 hours, and try to do it in 1:50, or 1:45; the final week you'd do trails that normally take you about an hour, and try to do them in :55 or :50. Slightly more intense, but not crazy hard.
What this does is allow your muscles, which have already built up strength and endurance, to fully heal and charge up for the upcoming challenge. When I do it this way, the weeks before feel ridiculously easy, but the healing is good for me, and I honestly enjoy the tough, challenging day more because my legs feel great, springy and fresh. Check out this link.
http://www.runnersworld.com/article/0,7 ... -0,00.html
I know you're not running a marathon, but a 13r is a serious challenge, and I doubt your body is going to think, "Wow, that was so easy! I think I'll do it backwards next time! Or maybe I'll carry a big rock! I need a REAL challenge!"
You'll probably find that Skyline and other such hiking has wonderfully prepared you, but a 13r is still a 13r. This taper idea is just like icing on the cake. Give it some thought.
z