Depends.
If I remove damage, then I sometimes use as much pressure as I think the razor can handle.
so a full wedge or quarter hollow is basically indestructable.
A full hollow is structurally weaker, so you'd use a lot less pressure.
As soon as I use higher grits (say 320 and upwards) I only use moderate pressure. I.e. enough to actually do something, but not pressing down to remove metal.
With higher grits you want an even finish, and that is easier with lighter pressure.