I'm trying to remember the 9.1 configuration, but if it's like most of the other Markers, the Heel is fairly straight forward - should be 4 screws.
The toe is a bit more interesting. There is normally at least one "hidden" screw, once you've unscrewed the visible ones, then slide the toe piece backward, and you'll find another screw at the front.
As I say, this is from memory, so I could be completely wrong. If you can wait until Saturday, I'll take a look at a set of 9.1s I know are in one of the local shops.