Re: Larger/stronger opponent
If it was being done static then I don't see the point of resisting that much. Static practice is for learning the foot work and movements. If he was giving you energy then I can see being a little harder on you.
But static practice is for 6th kyu class and children's class, both of which it's better not to be resiting, but focusing on learning the movements and posture. Just my little opinion though.