It will be interesting, I think Graysons best chance is to take the air out of the ball and try to control the clock. RV on the other hand needs to force Grayson to spread out there D and cover there playmakers in space.
The limited film I saw of Grayson did not make me think that they were overly big (I am sure that they will be bigger than RV given that has been the case for the 1st 10 games this season) I would be interested in the opinions of Marion since they played them earlier in the season
On a side note This will also be Gaysons 1st game on Artificial turf and while I don't think that in itself is that big a deal there local paper had quoted there coach in saying that they would have to get access to practicing on turf this week and IMHO taking a team out of there routine can be a bigger deal.