Your comment tells me I didn't do a very good job of writing the rules clearly. If you find any other bits that aren't clearly stated, please let me know so I can correct.
As the variant rules allow for an individual battalion within the activated regiment/brigade to move/change/fight provided there are enough hours left in a turn.
Does the variant rules address how the player accounts for the number of Staff Points used during the course of the Regiment/Brigade's activation?
Using SP's as an individual unit may change mode at anytime during its movement is a departure from the original rules where the numbers of Staff Points needed to make all of the desired mode changes for units making up a regiment/brigade during the "Mode Change/Forced March Designation Phase".
Your NATO and Warsaw Pact "Matts" are very nicely done, and I do not know if there would be enough room to track Staff Points spent during the course of a regiment/brigade's turn.
Finally, the above concern seems to throw off the totalling of SP's so that if more are needed than what the SPA provides for, then how is the points needed to points possessed calculated in order to use the "Mode Change Table"?
I'm not sure how close both methods would compare in the end, but in practice the first regiment/brigade or two turn into the point of main effort when spending actual Staff Point vice rolling (uncertainty) on the Mode Change Table.