curious, i haven't experiamented with fog planes, so pardon me for asking, but does the plane have to be completely flat or could it be rotated at all? because if you can't get working portals, i suggest adjusting the plane. hmmm...if tha's not possible, i would be happy to try and help you with portals. i've honestly never neede 2 fog planes before...but i like your dam idea.

~Oxy

btw, i don't read sig rules