The following has been posted to the errata on the GB website:
Swordpoint Movement Clarifications
All movement is measured from the start position of the centre front of the unit to the end position of the same point, including following changes of formation.
A formed unit which moves must move forwards by least half an inch, unless it starts its move with an about face. No part of the unit can end behind its start point.
Only a formed unit which moves straight forwards, with no alteration to its’ orientation, may move its’ full movement distance. Any other forward move goes a maximum of 75% of the full move distance.
A formed unit which commences with an about face obeys all the normal movement rules for the remainder of its move, based on its’ new direction.
A formed unit which does not move straight ahead will end its move oriented more to its left or right than it was at the start of the move. Its centre front must lie within the 45-degree arc to the relevant side of straight ahead at the end of its move. It cannot lie on the straight-ahead line. It cannot rotate more than 90 degrees.
Test 1 in paragraph 5.2 Manoeuvres is no longer applied. Test 2 is still applied to determine whether the unit has made a legal move.
A skirmish unit may move in any direction. If it moves straight forwards, with no alteration to its’ orientation, it may move its’ full movement distance. Any other move goes a maximum of 75% of the full move distance.
A skirmish unit loses half its move distance if it changes its formation.