I've been toying with the idea of various rules changes to make Birthright more historically accurate. And, recently, I've been looking at the idea of making knights available only as levies or at ridiculously high costs. The effectiveness of these units would have to be changed to reflect their nature. But, I was toying with the idea of letting a regent use his law holdings to either, collect income (scutage) or raise knight levies (military service).

Collections from provinces would reflect the bulk of the scutage that most regents would collect from various holdings -- the shift from military service to scutage having occurred over the past 1500 years. However, the knight levies would reflect the old school feudal duties. And, it has the byproduct of making these holdings more important once again.

Does anyone have thoughts on this?