What exactly is the manageability problems you foresee? 562 seems kind of a pointless change which doesn't address any of the named issues. The first paragraph:

> The framers of the Constitution and the Bill of Rights intended that the total population of Congressional districts never exceed 50 to 60 thousand. Currently, the average population size of the districts is nearly 700,000 and, consequently, the principle of proportionally equitable representation has been abandoned.