Benny, if you're going to play your forward opponent from behind you can't be continually flat-footed 5-10m off your man when he's leading. Hampson is mobile for his size but hardly Usain Bolt on the lead.
I do like using Griffs as part of the kick-in rotations. Handy to have a bloke who can belt it well outside the defensive 50 to try and counter any opposition press.