You didn't post a start time. I'd go if we could get people there to do a hard workout within the 20 miler and if we start early enough. If I'll be on my own anyway, then I might as well be running alone close to home.
I am waiting until it gets closer to pick a start time, kind of going with what most people want. I believe TylerS and Kellie are coming (last I heard) so you could definitely get in a hard workout. And I know my husband would be game for a hard workout with you leading!!! There will be people of all ability levels and so I would think you could get what you wanted out of it for sure. Talk to Tyler.