In reply to Moley:
Exactly.
You will always lose fitness after an event, its why you dont just race race race as you just get more unfit through the season.. so you build race prep races then hit the big race, then back down and start again on another cycle.
You've gone from one biggy to another, just rest up, start again, nothing silly and you'll be OK.
I did the WHW in 2007 and then the paddy 6 weeks later, i did one month easy after the 100, maybe 10-15 milers as my long run then one long day out, then the paddy and felt great.
I think on these long races the stamina you need is deep inside that you don't lose easily. You lose raw speed quickly, hence hill reps hurting but will keep this long distance fitness longer.
Just dont try and cram fitness in and just trust your previous work. Have a good 10 days, 2 weeks, maybe a long run this weekend, a longish run next weekend and usual training and then taper.
good luck.
Post edited at 04:10