<nods>
You didn't miss it, I hadn't mentioned it specifically. But yes, the size of the sphere was brought into question and in the interest of keeping things fun ruled that as it encircled the mini, the spell worked. Though on second thought I could have been a real RBDM and ruled that since the room was filled with webs that there was no way the wall of force could be unbroken and thus it failed.
But I like the way it worked out.
Oh, and *bump* for the returning morning crowd.