so, in the beginning, knights will be able to pick whatever estate they want but lords cannot kick them out of region, right?
can lord change estate size once it is already taken by knight?
though i can imagine this is designed so that knights will not need to beg for estates any more, i fear that will not help in developing relationship lord-knight and knight's loyalty to his region, to the extent that regions will mean nothing to knights... not to mention constant bargain that would take place at any turn, when knights approaches some other region...