Howdy,
The big changes to make it new and improved are:
1) Measuring the movement of units in base widths (using 2 inch wide bases).
Light Horse moves 5/3
Cavalry moves 4/2
Light foot moves 3/2
Foot moves 2/1
The reduced rate is used if a unit changes facing.
2) A couple of additional modifiers on the Quick Reference Sheet (QRS) for the determination rolls.
2a) A modifier for unit weight, and
2b) A modifier if flanks are threatened.
3) Rather than routing based on unit strength, veteran units rout at 4 hits, 3 for warriors, and 2 for green.
Unit strengths are generally the number of figures on one base (WRG basing); this is typically half of what was used in the initial version.
Notes and and the QRS are provided as a PDF in the Facebook group for the rules (search with the name of the rules).
Ponder on,
JAS