Just an update on the 705's, I finally had the chance to test them out on a horrible stretch of road. It was very muddy, about the consistency of "infant's fecal material" just thick enough to pack the tires full. Also very steep and plenty of washed out and rutted areas. I didn't even air my tires down (I was at 30 PSI). Somehow I managed to keep from dropping this fully loaded pig on the 8 (total) mile stretch of road I was on.
I'm not saying that the tires did great, but they managed to provide enough traction for my particular situation. I expected them to be much worse! I think I'll stick with these tires for a while. Price is right, they suit my riding style perfectly, and I don't want to be in mud anyway! Just nice to know they can handle it if I need them to.