I haven't seen anything about these questions:
- If you have 5ft. of speed, can you move on difficult terrain or are you basically stuck?
- If you have 25ft. of speed, you can move 2 squares on difficult terrain with a Stride. If you use 2 Strides, can you move 5 squares or are you limited to 4 squares? I would find that harsh to not combine both Strides into one big 50ft. Stride but I don't find any rule stating you should.