Quick question (I hope):
A mounted character wants to close with a daidoji iron warrior, to hit him with her scimitar. The Daidoji has used Iron Forest Style, to make an area 'dangerous territory', but even more so to keep the mounted warrior away. So far so good.
To approach, the mounted warriorm has to pass a fitness check. But with what stats? Her own? The mount's stats? The mount is, after all, the one approaching the daidoji.